Home / 38,720.52-58,090.77-12,425.49

Finding the Fourth Proportional to 38,720.52, 58,090.77 and 12,425.49

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Solution

The fourth proportional to 38,720.52, 58,090.77 and 12,425.49 is: 18,641.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,720.52 : 58,090.77 = 12,425.49 : x
  2. Step 2: Convert to fraction form
    38,720.52/58,090.77 = 12,425.49/x
  3. Step 3: Cross multiply
    38,720.52x = 58,090.77 × 12,425.49
  4. Step 4: Simplify right side
    38,720.52x = 721,806,281.73
  5. Step 5: Solve for x
    x = 721,806,281.73/38,720.52
  6. Step 6: Final answer
    x = 18,641.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.