Home / 31,450.17-43,401.15-18,874.92

Finding the Fourth Proportional to 31,450.17, 43,401.15 and 18,874.92

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Solution

The fourth proportional to 31,450.17, 43,401.15 and 18,874.92 is: 26,047.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,450.17 : 43,401.15 = 18,874.92 : x
  2. Step 2: Convert to fraction form
    31,450.17/43,401.15 = 18,874.92/x
  3. Step 3: Cross multiply
    31,450.17x = 43,401.15 × 18,874.92
  4. Step 4: Simplify right side
    31,450.17x = 819,193,234.16
  5. Step 5: Solve for x
    x = 819,193,234.16/31,450.17
  6. Step 6: Final answer
    x = 26,047.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.