Home / 22,818.20-31,488.87-12,747.65

Finding the Fourth Proportional to 22,818.20, 31,488.87 and 12,747.65

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Solution

The fourth proportional to 22,818.20, 31,488.87 and 12,747.65 is: 17,591.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,818.20 : 31,488.87 = 12,747.65 : x
  2. Step 2: Convert to fraction form
    22,818.20/31,488.87 = 12,747.65/x
  3. Step 3: Cross multiply
    22,818.20x = 31,488.87 × 12,747.65
  4. Step 4: Simplify right side
    22,818.20x = 401,409,093.66
  5. Step 5: Solve for x
    x = 401,409,093.66/22,818.20
  6. Step 6: Final answer
    x = 17,591.62

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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.