Home / 28,614.73-39,487.62-15,867.97

Finding the Fourth Proportional to 28,614.73, 39,487.62 and 15,867.97

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Solution

The fourth proportional to 28,614.73, 39,487.62 and 15,867.97 is: 21,897.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,614.73 : 39,487.62 = 15,867.97 : x
  2. Step 2: Convert to fraction form
    28,614.73/39,487.62 = 15,867.97/x
  3. Step 3: Cross multiply
    28,614.73x = 39,487.62 × 15,867.97
  4. Step 4: Simplify right side
    28,614.73x = 626,588,369.53
  5. Step 5: Solve for x
    x = 626,588,369.53/28,614.73
  6. Step 6: Final answer
    x = 21,897.41

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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.