Home / 31,739.20-47,611.19-10,679.31

Finding the Fourth Proportional to 31,739.20, 47,611.19 and 10,679.31

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Solution

The fourth proportional to 31,739.20, 47,611.19 and 10,679.31 is: 16,019.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,739.20 : 47,611.19 = 10,679.31 : x
  2. Step 2: Convert to fraction form
    31,739.20/47,611.19 = 10,679.31/x
  3. Step 3: Cross multiply
    31,739.20x = 47,611.19 × 10,679.31
  4. Step 4: Simplify right side
    31,739.20x = 508,454,684.18
  5. Step 5: Solve for x
    x = 508,454,684.18/31,739.20
  6. Step 6: Final answer
    x = 16,019.77

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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.