Home / 39,436.57-54,422.05-21,531.52

Finding the Fourth Proportional to 39,436.57, 54,422.05 and 21,531.52

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Solution

The fourth proportional to 39,436.57, 54,422.05 and 21,531.52 is: 29,713.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,436.57 : 54,422.05 = 21,531.52 : x
  2. Step 2: Convert to fraction form
    39,436.57/54,422.05 = 21,531.52/x
  3. Step 3: Cross multiply
    39,436.57x = 54,422.05 × 21,531.52
  4. Step 4: Simplify right side
    39,436.57x = 1,171,789,132.08
  5. Step 5: Solve for x
    x = 1,171,789,132.08/39,436.57
  6. Step 6: Final answer
    x = 29,713.27

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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.