Home / 31,500.19-47,251.19-8,126.63

Finding the Fourth Proportional to 31,500.19, 47,251.19 and 8,126.63

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Solution

The fourth proportional to 31,500.19, 47,251.19 and 8,126.63 is: 12,190.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,500.19 : 47,251.19 = 8,126.63 : x
  2. Step 2: Convert to fraction form
    31,500.19/47,251.19 = 8,126.63/x
  3. Step 3: Cross multiply
    31,500.19x = 47,251.19 × 8,126.63
  4. Step 4: Simplify right side
    31,500.19x = 383,992,722.25
  5. Step 5: Solve for x
    x = 383,992,722.25/31,500.19
  6. Step 6: Final answer
    x = 12,190.17

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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.