Home / 38,355.30-57,461.67-20,839.86

Finding the Fourth Proportional to 38,355.30, 57,461.67 and 20,839.86

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Solution

The fourth proportional to 38,355.30, 57,461.67 and 20,839.86 is: 31,221.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,355.30 : 57,461.67 = 20,839.86 : x
  2. Step 2: Convert to fraction form
    38,355.30/57,461.67 = 20,839.86/x
  3. Step 3: Cross multiply
    38,355.30x = 57,461.67 × 20,839.86
  4. Step 4: Simplify right side
    38,355.30x = 1,197,493,158.17
  5. Step 5: Solve for x
    x = 1,197,493,158.17/38,355.30
  6. Step 6: Final answer
    x = 31,221.06

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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.