Home / 20,512.72-28,304.44-11,560.06

Finding the Fourth Proportional to 20,512.72, 28,304.44 and 11,560.06

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Solution

The fourth proportional to 20,512.72, 28,304.44 and 11,560.06 is: 15,951.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.72 : 28,304.44 = 11,560.06 : x
  2. Step 2: Convert to fraction form
    20,512.72/28,304.44 = 11,560.06/x
  3. Step 3: Cross multiply
    20,512.72x = 28,304.44 × 11,560.06
  4. Step 4: Simplify right side
    20,512.72x = 327,201,024.67
  5. Step 5: Solve for x
    x = 327,201,024.67/20,512.72
  6. Step 6: Final answer
    x = 15,951.13

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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.