Home / 20,256.89-27,954.45-11,304.29

Finding the Fourth Proportional to 20,256.89, 27,954.45 and 11,304.29

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Solution

The fourth proportional to 20,256.89, 27,954.45 and 11,304.29 is: 15,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.89 : 27,954.45 = 11,304.29 : x
  2. Step 2: Convert to fraction form
    20,256.89/27,954.45 = 11,304.29/x
  3. Step 3: Cross multiply
    20,256.89x = 27,954.45 × 11,304.29
  4. Step 4: Simplify right side
    20,256.89x = 316,005,279.48
  5. Step 5: Solve for x
    x = 316,005,279.48/20,256.89
  6. Step 6: Final answer
    x = 15,599.90

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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.