Home / 42,451.60-63,590.70-20,197.72

Finding the Fourth Proportional to 42,451.60, 63,590.70 and 20,197.72

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Solution

The fourth proportional to 42,451.60, 63,590.70 and 20,197.72 is: 30,255.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,451.60 : 63,590.70 = 20,197.72 : x
  2. Step 2: Convert to fraction form
    42,451.60/63,590.70 = 20,197.72/x
  3. Step 3: Cross multiply
    42,451.60x = 63,590.70 × 20,197.72
  4. Step 4: Simplify right side
    42,451.60x = 1,284,387,153.20
  5. Step 5: Solve for x
    x = 1,284,387,153.20/42,451.60
  6. Step 6: Final answer
    x = 30,255.33

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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.