Home / 31,997.39-47,992.84-8,626.19

Finding the Fourth Proportional to 31,997.39, 47,992.84 and 8,626.19

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Solution

The fourth proportional to 31,997.39, 47,992.84 and 8,626.19 is: 12,938.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,997.39 : 47,992.84 = 8,626.19 : x
  2. Step 2: Convert to fraction form
    31,997.39/47,992.84 = 8,626.19/x
  3. Step 3: Cross multiply
    31,997.39x = 47,992.84 × 8,626.19
  4. Step 4: Simplify right side
    31,997.39x = 413,995,094.95
  5. Step 5: Solve for x
    x = 413,995,094.95/31,997.39
  6. Step 6: Final answer
    x = 12,938.40

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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.