Home / 20,832.98-31,248.77-8,349.66

Finding the Fourth Proportional to 20,832.98, 31,248.77 and 8,349.66

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Solution

The fourth proportional to 20,832.98, 31,248.77 and 8,349.66 is: 12,524.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832.98 : 31,248.77 = 8,349.66 : x
  2. Step 2: Convert to fraction form
    20,832.98/31,248.77 = 8,349.66/x
  3. Step 3: Cross multiply
    20,832.98x = 31,248.77 × 8,349.66
  4. Step 4: Simplify right side
    20,832.98x = 260,916,604.92
  5. Step 5: Solve for x
    x = 260,916,604.92/20,832.98
  6. Step 6: Final answer
    x = 12,524.21

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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.