Home / 21,766.65-30,003.25-17,159.90

Finding the Fourth Proportional to 21,766.65, 30,003.25 and 17,159.90

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Solution

The fourth proportional to 21,766.65, 30,003.25 and 17,159.90 is: 23,653.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,766.65 : 30,003.25 = 17,159.90 : x
  2. Step 2: Convert to fraction form
    21,766.65/30,003.25 = 17,159.90/x
  3. Step 3: Cross multiply
    21,766.65x = 30,003.25 × 17,159.90
  4. Step 4: Simplify right side
    21,766.65x = 514,852,753.57
  5. Step 5: Solve for x
    x = 514,852,753.57/21,766.65
  6. Step 6: Final answer
    x = 23,653.28

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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.