Home / 22,740.66-31,382.18-13,182.39

Finding the Fourth Proportional to 22,740.66, 31,382.18 and 13,182.39

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Solution

The fourth proportional to 22,740.66, 31,382.18 and 13,182.39 is: 18,191.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,740.66 : 31,382.18 = 13,182.39 : x
  2. Step 2: Convert to fraction form
    22,740.66/31,382.18 = 13,182.39/x
  3. Step 3: Cross multiply
    22,740.66x = 31,382.18 × 13,182.39
  4. Step 4: Simplify right side
    22,740.66x = 413,692,069.90
  5. Step 5: Solve for x
    x = 413,692,069.90/22,740.66
  6. Step 6: Final answer
    x = 18,191.74

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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.