Home / 25,723.20-35,502.12-15,115.44

Finding the Fourth Proportional to 25,723.20, 35,502.12 and 15,115.44

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Solution

The fourth proportional to 25,723.20, 35,502.12 and 15,115.44 is: 20,861.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,723.20 : 35,502.12 = 15,115.44 : x
  2. Step 2: Convert to fraction form
    25,723.20/35,502.12 = 15,115.44/x
  3. Step 3: Cross multiply
    25,723.20x = 35,502.12 × 15,115.44
  4. Step 4: Simplify right side
    25,723.20x = 536,630,164.73
  5. Step 5: Solve for x
    x = 536,630,164.73/25,723.20
  6. Step 6: Final answer
    x = 20,861.72

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Half scale
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Double scale
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Similar ratio
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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.