Home / 39,450.52-54,442.02-21,545.20

Finding the Fourth Proportional to 39,450.52, 54,442.02 and 21,545.20

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Solution

The fourth proportional to 39,450.52, 54,442.02 and 21,545.20 is: 29,732.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,450.52 : 54,442.02 = 21,545.20 : x
  2. Step 2: Convert to fraction form
    39,450.52/54,442.02 = 21,545.20/x
  3. Step 3: Cross multiply
    39,450.52x = 54,442.02 × 21,545.20
  4. Step 4: Simplify right side
    39,450.52x = 1,172,964,209.30
  5. Step 5: Solve for x
    x = 1,172,964,209.30/39,450.52
  6. Step 6: Final answer
    x = 29,732.54

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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.