Home / 39,229.08-54,136.20-21,324.04

Finding the Fourth Proportional to 39,229.08, 54,136.20 and 21,324.04

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Solution

The fourth proportional to 39,229.08, 54,136.20 and 21,324.04 is: 29,427.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,229.08 : 54,136.20 = 21,324.04 : x
  2. Step 2: Convert to fraction form
    39,229.08/54,136.20 = 21,324.04/x
  3. Step 3: Cross multiply
    39,229.08x = 54,136.20 × 21,324.04
  4. Step 4: Simplify right side
    39,229.08x = 1,154,402,494.25
  5. Step 5: Solve for x
    x = 1,154,402,494.25/39,229.08
  6. Step 6: Final answer
    x = 29,427.21

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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.