Home / 39,442.29-54,431.27-21,537.42

Finding the Fourth Proportional to 39,442.29, 54,431.27 and 21,537.42

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Solution

The fourth proportional to 39,442.29, 54,431.27 and 21,537.42 is: 29,722.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,442.29 : 54,431.27 = 21,537.42 : x
  2. Step 2: Convert to fraction form
    39,442.29/54,431.27 = 21,537.42/x
  3. Step 3: Cross multiply
    39,442.29x = 54,431.27 × 21,537.42
  4. Step 4: Simplify right side
    39,442.29x = 1,172,309,123.12
  5. Step 5: Solve for x
    x = 1,172,309,123.12/39,442.29
  6. Step 6: Final answer
    x = 29,722.14

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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.