Home / 22,642.97-31,251.02-13,211.51

Finding the Fourth Proportional to 22,642.97, 31,251.02 and 13,211.51

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Solution

The fourth proportional to 22,642.97, 31,251.02 and 13,211.51 is: 18,234.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,642.97 : 31,251.02 = 13,211.51 : x
  2. Step 2: Convert to fraction form
    22,642.97/31,251.02 = 13,211.51/x
  3. Step 3: Cross multiply
    22,642.97x = 31,251.02 × 13,211.51
  4. Step 4: Simplify right side
    22,642.97x = 412,872,940.93
  5. Step 5: Solve for x
    x = 412,872,940.93/22,642.97
  6. Step 6: Final answer
    x = 18,234.05

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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.