Home / 21,244.20-31,866.29-10,117.16

Finding the Fourth Proportional to 21,244.20, 31,866.29 and 10,117.16

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Solution

The fourth proportional to 21,244.20, 31,866.29 and 10,117.16 is: 15,175.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244.20 : 31,866.29 = 10,117.16 : x
  2. Step 2: Convert to fraction form
    21,244.20/31,866.29 = 10,117.16/x
  3. Step 3: Cross multiply
    21,244.20x = 31,866.29 × 10,117.16
  4. Step 4: Simplify right side
    21,244.20x = 322,396,195.20
  5. Step 5: Solve for x
    x = 322,396,195.20/21,244.20
  6. Step 6: Final answer
    x = 15,175.73

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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.