Home / 27,626.33-38,124.61-15,689.90

Finding the Fourth Proportional to 27,626.33, 38,124.61 and 15,689.90

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Solution

The fourth proportional to 27,626.33, 38,124.61 and 15,689.90 is: 21,652.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,626.33 : 38,124.61 = 15,689.90 : x
  2. Step 2: Convert to fraction form
    27,626.33/38,124.61 = 15,689.90/x
  3. Step 3: Cross multiply
    27,626.33x = 38,124.61 × 15,689.90
  4. Step 4: Simplify right side
    27,626.33x = 598,171,374.53
  5. Step 5: Solve for x
    x = 598,171,374.53/27,626.33
  6. Step 6: Final answer
    x = 21,652.22

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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.