Home / 31,471.95-47,207.92-30,105.29

Finding the Fourth Proportional to 31,471.95, 47,207.92 and 30,105.29

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Solution

The fourth proportional to 31,471.95, 47,207.92 and 30,105.29 is: 45,157.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,471.95 : 47,207.92 = 30,105.29 : x
  2. Step 2: Convert to fraction form
    31,471.95/47,207.92 = 30,105.29/x
  3. Step 3: Cross multiply
    31,471.95x = 47,207.92 × 30,105.29
  4. Step 4: Simplify right side
    31,471.95x = 1,421,208,121.90
  5. Step 5: Solve for x
    x = 1,421,208,121.90/31,471.95
  6. Step 6: Final answer
    x = 45,157.93

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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.