Home / 23,020.74-31,769.10-12,949.02

Finding the Fourth Proportional to 23,020.74, 31,769.10 and 12,949.02

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Solution

The fourth proportional to 23,020.74, 31,769.10 and 12,949.02 is: 17,869.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,020.74 : 31,769.10 = 12,949.02 : x
  2. Step 2: Convert to fraction form
    23,020.74/31,769.10 = 12,949.02/x
  3. Step 3: Cross multiply
    23,020.74x = 31,769.10 × 12,949.02
  4. Step 4: Simplify right side
    23,020.74x = 411,378,711.28
  5. Step 5: Solve for x
    x = 411,378,711.28/23,020.74
  6. Step 6: Final answer
    x = 17,869.92

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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.