Home / 25,747.20-35,529.84-15,132.96

Finding the Fourth Proportional to 25,747.20, 35,529.84 and 15,132.96

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Solution

The fourth proportional to 25,747.20, 35,529.84 and 15,132.96 is: 20,882.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,747.20 : 35,529.84 = 15,132.96 : x
  2. Step 2: Convert to fraction form
    25,747.20/35,529.84 = 15,132.96/x
  3. Step 3: Cross multiply
    25,747.20x = 35,529.84 × 15,132.96
  4. Step 4: Simplify right side
    25,747.20x = 537,671,647.53
  5. Step 5: Solve for x
    x = 537,671,647.53/25,747.20
  6. Step 6: Final answer
    x = 20,882.72

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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.