Home / 39,229.11-54,136.73-21,324.11

Finding the Fourth Proportional to 39,229.11, 54,136.73 and 21,324.11

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Solution

The fourth proportional to 39,229.11, 54,136.73 and 21,324.11 is: 29,427.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,229.11 : 54,136.73 = 21,324.11 : x
  2. Step 2: Convert to fraction form
    39,229.11/54,136.73 = 21,324.11/x
  3. Step 3: Cross multiply
    39,229.11x = 54,136.73 × 21,324.11
  4. Step 4: Simplify right side
    39,229.11x = 1,154,417,612.73
  5. Step 5: Solve for x
    x = 1,154,417,612.73/39,229.11
  6. Step 6: Final answer
    x = 29,427.58

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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.