Home / 22,819.36-31,491.24-12,747.76

Finding the Fourth Proportional to 22,819.36, 31,491.24 and 12,747.76

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Solution

The fourth proportional to 22,819.36, 31,491.24 and 12,747.76 is: 17,592.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,819.36 : 31,491.24 = 12,747.76 : x
  2. Step 2: Convert to fraction form
    22,819.36/31,491.24 = 12,747.76/x
  3. Step 3: Cross multiply
    22,819.36x = 31,491.24 × 12,747.76
  4. Step 4: Simplify right side
    22,819.36x = 401,442,769.62
  5. Step 5: Solve for x
    x = 401,442,769.62/22,819.36
  6. Step 6: Final answer
    x = 17,592.20

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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.