Home / 38,259.78-57,355.11-13,630.02

Finding the Fourth Proportional to 38,259.78, 57,355.11 and 13,630.02

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Solution

The fourth proportional to 38,259.78, 57,355.11 and 13,630.02 is: 20,432.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,259.78 : 57,355.11 = 13,630.02 : x
  2. Step 2: Convert to fraction form
    38,259.78/57,355.11 = 13,630.02/x
  3. Step 3: Cross multiply
    38,259.78x = 57,355.11 × 13,630.02
  4. Step 4: Simplify right side
    38,259.78x = 781,751,296.40
  5. Step 5: Solve for x
    x = 781,751,296.40/38,259.78
  6. Step 6: Final answer
    x = 20,432.72

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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.