Home / 38,691.41-58,053.52-21,140.74

Finding the Fourth Proportional to 38,691.41, 58,053.52 and 21,140.74

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Solution

The fourth proportional to 38,691.41, 58,053.52 and 21,140.74 is: 31,720.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,691.41 : 58,053.52 = 21,140.74 : x
  2. Step 2: Convert to fraction form
    38,691.41/58,053.52 = 21,140.74/x
  3. Step 3: Cross multiply
    38,691.41x = 58,053.52 × 21,140.74
  4. Step 4: Simplify right side
    38,691.41x = 1,227,294,082.14
  5. Step 5: Solve for x
    x = 1,227,294,082.14/38,691.41
  6. Step 6: Final answer
    x = 31,720.07

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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.