Home / 38,999.20-58,498.80-38,221.60

Finding the Fourth Proportional to 38,999.20, 58,498.80 and 38,221.60

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Solution

The fourth proportional to 38,999.20, 58,498.80 and 38,221.60 is: 57,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,999.20 : 58,498.80 = 38,221.60 : x
  2. Step 2: Convert to fraction form
    38,999.20/58,498.80 = 38,221.60/x
  3. Step 3: Cross multiply
    38,999.20x = 58,498.80 × 38,221.60
  4. Step 4: Simplify right side
    38,999.20x = 2,235,917,734.08
  5. Step 5: Solve for x
    x = 2,235,917,734.08/38,999.20
  6. Step 6: Final answer
    x = 57,332.40

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Similar ratio
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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.