Home / 22,519.62-31,077.27-12,447.90

Finding the Fourth Proportional to 22,519.62, 31,077.27 and 12,447.90

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Solution

The fourth proportional to 22,519.62, 31,077.27 and 12,447.90 is: 17,178.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,519.62 : 31,077.27 = 12,447.90 : x
  2. Step 2: Convert to fraction form
    22,519.62/31,077.27 = 12,447.90/x
  3. Step 3: Cross multiply
    22,519.62x = 31,077.27 × 12,447.90
  4. Step 4: Simplify right side
    22,519.62x = 386,846,749.23
  5. Step 5: Solve for x
    x = 386,846,749.23/22,519.62
  6. Step 6: Final answer
    x = 17,178.21

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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.