Home / 31,434.36-47,157.12-10,375.56

Finding the Fourth Proportional to 31,434.36, 47,157.12 and 10,375.56

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Solution

The fourth proportional to 31,434.36, 47,157.12 and 10,375.56 is: 15,565.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,434.36 : 47,157.12 = 10,375.56 : x
  2. Step 2: Convert to fraction form
    31,434.36/47,157.12 = 10,375.56/x
  3. Step 3: Cross multiply
    31,434.36x = 47,157.12 × 10,375.56
  4. Step 4: Simplify right side
    31,434.36x = 489,281,527.99
  5. Step 5: Solve for x
    x = 489,281,527.99/31,434.36
  6. Step 6: Final answer
    x = 15,565.18

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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.