Home / 39,445.52-54,432.81-21,537.09

Finding the Fourth Proportional to 39,445.52, 54,432.81 and 21,537.09

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Solution

The fourth proportional to 39,445.52, 54,432.81 and 21,537.09 is: 29,720.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,445.52 : 54,432.81 = 21,537.09 : x
  2. Step 2: Convert to fraction form
    39,445.52/54,432.81 = 21,537.09/x
  3. Step 3: Cross multiply
    39,445.52x = 54,432.81 × 21,537.09
  4. Step 4: Simplify right side
    39,445.52x = 1,172,324,327.92
  5. Step 5: Solve for x
    x = 1,172,324,327.92/39,445.52
  6. Step 6: Final answer
    x = 29,720.09

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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.