Home / 39,689.91-59,534.82-30,931.38

Finding the Fourth Proportional to 39,689.91, 59,534.82 and 30,931.38

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Solution

The fourth proportional to 39,689.91, 59,534.82 and 30,931.38 is: 46,397.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,689.91 : 59,534.82 = 30,931.38 : x
  2. Step 2: Convert to fraction form
    39,689.91/59,534.82 = 30,931.38/x
  3. Step 3: Cross multiply
    39,689.91x = 59,534.82 × 30,931.38
  4. Step 4: Simplify right side
    39,689.91x = 1,841,494,140.65
  5. Step 5: Solve for x
    x = 1,841,494,140.65/39,689.91
  6. Step 6: Final answer
    x = 46,397.03

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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.