Home / 20,560.23-28,373.90-11,608.72

Finding the Fourth Proportional to 20,560.23, 28,373.90 and 11,608.72

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Solution

The fourth proportional to 20,560.23, 28,373.90 and 11,608.72 is: 16,020.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.23 : 28,373.90 = 11,608.72 : x
  2. Step 2: Convert to fraction form
    20,560.23/28,373.90 = 11,608.72/x
  3. Step 3: Cross multiply
    20,560.23x = 28,373.90 × 11,608.72
  4. Step 4: Simplify right side
    20,560.23x = 329,384,531.43
  5. Step 5: Solve for x
    x = 329,384,531.43/20,560.23
  6. Step 6: Final answer
    x = 16,020.47

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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.