Home / 31,371.55-47,057.38-13,355.13

Finding the Fourth Proportional to 31,371.55, 47,057.38 and 13,355.13

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Solution

The fourth proportional to 31,371.55, 47,057.38 and 13,355.13 is: 20,032.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,371.55 : 47,057.38 = 13,355.13 : x
  2. Step 2: Convert to fraction form
    31,371.55/47,057.38 = 13,355.13/x
  3. Step 3: Cross multiply
    31,371.55x = 47,057.38 × 13,355.13
  4. Step 4: Simplify right side
    31,371.55x = 628,457,343.30
  5. Step 5: Solve for x
    x = 628,457,343.30/31,371.55
  6. Step 6: Final answer
    x = 20,032.71

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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.