Home / 39,474.01-54,474.15-21,324.74

Finding the Fourth Proportional to 39,474.01, 54,474.15 and 21,324.74

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Solution

The fourth proportional to 39,474.01, 54,474.15 and 21,324.74 is: 29,428.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,474.01 : 54,474.15 = 21,324.74 : x
  2. Step 2: Convert to fraction form
    39,474.01/54,474.15 = 21,324.74/x
  3. Step 3: Cross multiply
    39,474.01x = 54,474.15 × 21,324.74
  4. Step 4: Simplify right side
    39,474.01x = 1,161,646,978.85
  5. Step 5: Solve for x
    x = 1,161,646,978.85/39,474.01
  6. Step 6: Final answer
    x = 29,428.15

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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.