Home / 39,732.47-59,528.66-20,971.17

Finding the Fourth Proportional to 39,732.47, 59,528.66 and 20,971.17

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Solution

The fourth proportional to 39,732.47, 59,528.66 and 20,971.17 is: 31,419.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,732.47 : 59,528.66 = 20,971.17 : x
  2. Step 2: Convert to fraction form
    39,732.47/59,528.66 = 20,971.17/x
  3. Step 3: Cross multiply
    39,732.47x = 59,528.66 × 20,971.17
  4. Step 4: Simplify right side
    39,732.47x = 1,248,385,543.88
  5. Step 5: Solve for x
    x = 1,248,385,543.88/39,732.47
  6. Step 6: Final answer
    x = 31,419.78

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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.