Home / 39,442.07-54,429.63-21,537.02

Finding the Fourth Proportional to 39,442.07, 54,429.63 and 21,537.02

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Solution

The fourth proportional to 39,442.07, 54,429.63 and 21,537.02 is: 29,720.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,442.07 : 54,429.63 = 21,537.02 : x
  2. Step 2: Convert to fraction form
    39,442.07/54,429.63 = 21,537.02/x
  3. Step 3: Cross multiply
    39,442.07x = 54,429.63 × 21,537.02
  4. Step 4: Simplify right side
    39,442.07x = 1,172,251,757.75
  5. Step 5: Solve for x
    x = 1,172,251,757.75/39,442.07
  6. Step 6: Final answer
    x = 29,720.85

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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.