Home / 25,753.29-35,540.42-15,143.91

Finding the Fourth Proportional to 25,753.29, 35,540.42 and 15,143.91

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Solution

The fourth proportional to 25,753.29, 35,540.42 and 15,143.91 is: 20,899.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,753.29 : 35,540.42 = 15,143.91 : x
  2. Step 2: Convert to fraction form
    25,753.29/35,540.42 = 15,143.91/x
  3. Step 3: Cross multiply
    25,753.29x = 35,540.42 × 15,143.91
  4. Step 4: Simplify right side
    25,753.29x = 538,220,846.12
  5. Step 5: Solve for x
    x = 538,220,846.12/25,753.29
  6. Step 6: Final answer
    x = 20,899.11

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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.