Home / 23,186.65-31,997.82-13,115.20

Finding the Fourth Proportional to 23,186.65, 31,997.82 and 13,115.20

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Solution

The fourth proportional to 23,186.65, 31,997.82 and 13,115.20 is: 18,099.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,186.65 : 31,997.82 = 13,115.20 : x
  2. Step 2: Convert to fraction form
    23,186.65/31,997.82 = 13,115.20/x
  3. Step 3: Cross multiply
    23,186.65x = 31,997.82 × 13,115.20
  4. Step 4: Simplify right side
    23,186.65x = 419,657,808.86
  5. Step 5: Solve for x
    x = 419,657,808.86/23,186.65
  6. Step 6: Final answer
    x = 18,099.11

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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.