Home / 82,228.38-123,343.17-19,898.88

Finding the Fourth Proportional to 82,228.38, 123,343.17 and 19,898.88

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Solution

The fourth proportional to 82,228.38, 123,343.17 and 19,898.88 is: 29,848.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,228.38 : 123,343.17 = 19,898.88 : x
  2. Step 2: Convert to fraction form
    82,228.38/123,343.17 = 19,898.88/x
  3. Step 3: Cross multiply
    82,228.38x = 123,343.17 × 19,898.88
  4. Step 4: Simplify right side
    82,228.38x = 2,454,390,938.65
  5. Step 5: Solve for x
    x = 2,454,390,938.65/82,228.38
  6. Step 6: Final answer
    x = 29,848.47

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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.