Home / 28,022.47-42,034.28-11,371.12

Finding the Fourth Proportional to 28,022.47, 42,034.28 and 11,371.12

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Solution

The fourth proportional to 28,022.47, 42,034.28 and 11,371.12 is: 17,056.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,022.47 : 42,034.28 = 11,371.12 : x
  2. Step 2: Convert to fraction form
    28,022.47/42,034.28 = 11,371.12/x
  3. Step 3: Cross multiply
    28,022.47x = 42,034.28 × 11,371.12
  4. Step 4: Simplify right side
    28,022.47x = 477,976,574.97
  5. Step 5: Solve for x
    x = 477,976,574.97/28,022.47
  6. Step 6: Final answer
    x = 17,056.91

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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.