Home / 39,452.36-54,442.21-21,543.87

Finding the Fourth Proportional to 39,452.36, 54,442.21 and 21,543.87

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Solution

The fourth proportional to 39,452.36, 54,442.21 and 21,543.87 is: 29,729.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,452.36 : 54,442.21 = 21,543.87 : x
  2. Step 2: Convert to fraction form
    39,452.36/54,442.21 = 21,543.87/x
  3. Step 3: Cross multiply
    39,452.36x = 54,442.21 × 21,543.87
  4. Step 4: Simplify right side
    39,452.36x = 1,172,895,787.03
  5. Step 5: Solve for x
    x = 1,172,895,787.03/39,452.36
  6. Step 6: Final answer
    x = 29,729.42

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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.