Home / 22,761.28-34,141.60-7,178.76

Finding the Fourth Proportional to 22,761.28, 34,141.60 and 7,178.76

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Solution

The fourth proportional to 22,761.28, 34,141.60 and 7,178.76 is: 10,768.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,761.28 : 34,141.60 = 7,178.76 : x
  2. Step 2: Convert to fraction form
    22,761.28/34,141.60 = 7,178.76/x
  3. Step 3: Cross multiply
    22,761.28x = 34,141.60 × 7,178.76
  4. Step 4: Simplify right side
    22,761.28x = 245,094,352.42
  5. Step 5: Solve for x
    x = 245,094,352.42/22,761.28
  6. Step 6: Final answer
    x = 10,768.04

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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.