Home / 38,313.57-57,347.43-20,499.68

Finding the Fourth Proportional to 38,313.57, 57,347.43 and 20,499.68

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Solution

The fourth proportional to 38,313.57, 57,347.43 and 20,499.68 is: 30,683.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,313.57 : 57,347.43 = 20,499.68 : x
  2. Step 2: Convert to fraction form
    38,313.57/57,347.43 = 20,499.68/x
  3. Step 3: Cross multiply
    38,313.57x = 57,347.43 × 20,499.68
  4. Step 4: Simplify right side
    38,313.57x = 1,175,603,677.09
  5. Step 5: Solve for x
    x = 1,175,603,677.09/38,313.57
  6. Step 6: Final answer
    x = 30,683.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.