Home / 39,693.20-59,545.09-20,974.01

Finding the Fourth Proportional to 39,693.20, 59,545.09 and 20,974.01

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Solution

The fourth proportional to 39,693.20, 59,545.09 and 20,974.01 is: 31,463.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,693.20 : 59,545.09 = 20,974.01 : x
  2. Step 2: Convert to fraction form
    39,693.20/59,545.09 = 20,974.01/x
  3. Step 3: Cross multiply
    39,693.20x = 59,545.09 × 20,974.01
  4. Step 4: Simplify right side
    39,693.20x = 1,248,898,962.95
  5. Step 5: Solve for x
    x = 1,248,898,962.95/39,693.20
  6. Step 6: Final answer
    x = 31,463.80

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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.