Home / 28,042.20-42,062.39-11,397.76

Finding the Fourth Proportional to 28,042.20, 42,062.39 and 11,397.76

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Solution

The fourth proportional to 28,042.20, 42,062.39 and 11,397.76 is: 17,096.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.20 : 42,062.39 = 11,397.76 : x
  2. Step 2: Convert to fraction form
    28,042.20/42,062.39 = 11,397.76/x
  3. Step 3: Cross multiply
    28,042.20x = 42,062.39 × 11,397.76
  4. Step 4: Simplify right side
    28,042.20x = 479,417,143.44
  5. Step 5: Solve for x
    x = 479,417,143.44/28,042.20
  6. Step 6: Final answer
    x = 17,096.27

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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.