Home / 21,034.71-31,564.13-8,552.43

Finding the Fourth Proportional to 21,034.71, 31,564.13 and 8,552.43

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Solution

The fourth proportional to 21,034.71, 31,564.13 and 8,552.43 is: 12,833.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,034.71 : 31,564.13 = 8,552.43 : x
  2. Step 2: Convert to fraction form
    21,034.71/31,564.13 = 8,552.43/x
  3. Step 3: Cross multiply
    21,034.71x = 31,564.13 × 8,552.43
  4. Step 4: Simplify right side
    21,034.71x = 269,949,969.57
  5. Step 5: Solve for x
    x = 269,949,969.57/21,034.71
  6. Step 6: Final answer
    x = 12,833.55

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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.