Home / 39,982.50-59,908.10-13,672.89

Finding the Fourth Proportional to 39,982.50, 59,908.10 and 13,672.89

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Solution

The fourth proportional to 39,982.50, 59,908.10 and 13,672.89 is: 20,486.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,982.50 : 59,908.10 = 13,672.89 : x
  2. Step 2: Convert to fraction form
    39,982.50/59,908.10 = 13,672.89/x
  3. Step 3: Cross multiply
    39,982.50x = 59,908.10 × 13,672.89
  4. Step 4: Simplify right side
    39,982.50x = 819,116,793.04
  5. Step 5: Solve for x
    x = 819,116,793.04/39,982.50
  6. Step 6: Final answer
    x = 20,486.88

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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.