Home / 20,452.43-28,226.48-12,499.95

Finding the Fourth Proportional to 20,452.43, 28,226.48 and 12,499.95

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Solution

The fourth proportional to 20,452.43, 28,226.48 and 12,499.95 is: 17,251.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.43 : 28,226.48 = 12,499.95 : x
  2. Step 2: Convert to fraction form
    20,452.43/28,226.48 = 12,499.95/x
  3. Step 3: Cross multiply
    20,452.43x = 28,226.48 × 12,499.95
  4. Step 4: Simplify right side
    20,452.43x = 352,829,518.11
  5. Step 5: Solve for x
    x = 352,829,518.11/20,452.43
  6. Step 6: Final answer
    x = 17,251.23

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Double scale
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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.