Home / 20,695.92-31,061.16-8,227.44

Finding the Fourth Proportional to 20,695.92, 31,061.16 and 8,227.44

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Solution

The fourth proportional to 20,695.92, 31,061.16 and 8,227.44 is: 12,348.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.92 : 31,061.16 = 8,227.44 : x
  2. Step 2: Convert to fraction form
    20,695.92/31,061.16 = 8,227.44/x
  3. Step 3: Cross multiply
    20,695.92x = 31,061.16 × 8,227.44
  4. Step 4: Simplify right side
    20,695.92x = 255,553,830.23
  5. Step 5: Solve for x
    x = 255,553,830.23/20,695.92
  6. Step 6: Final answer
    x = 12,348.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.