Home / 38,217.59-52,739.25-21,221.39

Finding the Fourth Proportional to 38,217.59, 52,739.25 and 21,221.39

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Solution

The fourth proportional to 38,217.59, 52,739.25 and 21,221.39 is: 29,284.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,217.59 : 52,739.25 = 21,221.39 : x
  2. Step 2: Convert to fraction form
    38,217.59/52,739.25 = 21,221.39/x
  3. Step 3: Cross multiply
    38,217.59x = 52,739.25 × 21,221.39
  4. Step 4: Simplify right side
    38,217.59x = 1,119,199,928.86
  5. Step 5: Solve for x
    x = 1,119,199,928.86/38,217.59
  6. Step 6: Final answer
    x = 29,284.95

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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.