Home / 28,294.41-39,046.98-15,547.89

Finding the Fourth Proportional to 28,294.41, 39,046.98 and 15,547.89

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Solution

The fourth proportional to 28,294.41, 39,046.98 and 15,547.89 is: 21,456.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,294.41 : 39,046.98 = 15,547.89 : x
  2. Step 2: Convert to fraction form
    28,294.41/39,046.98 = 15,547.89/x
  3. Step 3: Cross multiply
    28,294.41x = 39,046.98 × 15,547.89
  4. Step 4: Simplify right side
    28,294.41x = 607,098,149.87
  5. Step 5: Solve for x
    x = 607,098,149.87/28,294.41
  6. Step 6: Final answer
    x = 21,456.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.