Home / 22,108.64-30,500.89-13,608.20

Finding the Fourth Proportional to 22,108.64, 30,500.89 and 13,608.20

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Solution

The fourth proportional to 22,108.64, 30,500.89 and 13,608.20 is: 18,773.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,108.64 : 30,500.89 = 13,608.20 : x
  2. Step 2: Convert to fraction form
    22,108.64/30,500.89 = 13,608.20/x
  3. Step 3: Cross multiply
    22,108.64x = 30,500.89 × 13,608.20
  4. Step 4: Simplify right side
    22,108.64x = 415,062,211.30
  5. Step 5: Solve for x
    x = 415,062,211.30/22,108.64
  6. Step 6: Final answer
    x = 18,773.76

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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.