Home / 28,655.76-39,537.96-21,948.96

Finding the Fourth Proportional to 28,655.76, 39,537.96 and 21,948.96

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Solution

The fourth proportional to 28,655.76, 39,537.96 and 21,948.96 is: 30,284.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,655.76 : 39,537.96 = 21,948.96 : x
  2. Step 2: Convert to fraction form
    28,655.76/39,537.96 = 21,948.96/x
  3. Step 3: Cross multiply
    28,655.76x = 39,537.96 × 21,948.96
  4. Step 4: Simplify right side
    28,655.76x = 867,817,102.52
  5. Step 5: Solve for x
    x = 867,817,102.52/28,655.76
  6. Step 6: Final answer
    x = 30,284.21

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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.