Home / 20,292.38-27,986.28-17,121.23

Finding the Fourth Proportional to 20,292.38, 27,986.28 and 17,121.23

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Solution

The fourth proportional to 20,292.38, 27,986.28 and 17,121.23 is: 23,612.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.38 : 27,986.28 = 17,121.23 : x
  2. Step 2: Convert to fraction form
    20,292.38/27,986.28 = 17,121.23/x
  3. Step 3: Cross multiply
    20,292.38x = 27,986.28 × 17,121.23
  4. Step 4: Simplify right side
    20,292.38x = 479,159,536.72
  5. Step 5: Solve for x
    x = 479,159,536.72/20,292.38
  6. Step 6: Final answer
    x = 23,612.78

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1.5x scale

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.