Home / 28,427,038.76-39,229,313.54-15,374,297.71

Finding the Fourth Proportional to 28,427,038.76, 39,229,313.54 and 15,374,297.71

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Solution

The fourth proportional to 28,427,038.76, 39,229,313.54 and 15,374,297.71 is: 21,216,530.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,427,038.76 : 39,229,313.54 = 15,374,297.71 : x
  2. Step 2: Convert to fraction form
    28,427,038.76/39,229,313.54 = 15,374,297.71/x
  3. Step 3: Cross multiply
    28,427,038.76x = 39,229,313.54 × 15,374,297.71
  4. Step 4: Simplify right side
    28,427,038.76x = 603,123,145,295,059.12
  5. Step 5: Solve for x
    x = 603,123,145,295,059.12/28,427,038.76
  6. Step 6: Final answer
    x = 21,216,530.86

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.