Home / 38,514.60-57,771.90-12,221.40

Finding the Fourth Proportional to 38,514.60, 57,771.90 and 12,221.40

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Solution

The fourth proportional to 38,514.60, 57,771.90 and 12,221.40 is: 18,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,514.60 : 57,771.90 = 12,221.40 : x
  2. Step 2: Convert to fraction form
    38,514.60/57,771.90 = 12,221.40/x
  3. Step 3: Cross multiply
    38,514.60x = 57,771.90 × 12,221.40
  4. Step 4: Simplify right side
    38,514.60x = 706,053,498.66
  5. Step 5: Solve for x
    x = 706,053,498.66/38,514.60
  6. Step 6: Final answer
    x = 18,332.10

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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.