Home / 31,469.40-47,165.22-18,950.04

Finding the Fourth Proportional to 31,469.40, 47,165.22 and 18,950.04

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Solution

The fourth proportional to 31,469.40, 47,165.22 and 18,950.04 is: 28,401.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,469.40 : 47,165.22 = 18,950.04 : x
  2. Step 2: Convert to fraction form
    31,469.40/47,165.22 = 18,950.04/x
  3. Step 3: Cross multiply
    31,469.40x = 47,165.22 × 18,950.04
  4. Step 4: Simplify right side
    31,469.40x = 893,782,805.61
  5. Step 5: Solve for x
    x = 893,782,805.61/31,469.40
  6. Step 6: Final answer
    x = 28,401.65

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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.