Home / 31,813.56-47,707.02-12,081.24

Finding the Fourth Proportional to 31,813.56, 47,707.02 and 12,081.24

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Solution

The fourth proportional to 31,813.56, 47,707.02 and 12,081.24 is: 18,116.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,813.56 : 47,707.02 = 12,081.24 : x
  2. Step 2: Convert to fraction form
    31,813.56/47,707.02 = 12,081.24/x
  3. Step 3: Cross multiply
    31,813.56x = 47,707.02 × 12,081.24
  4. Step 4: Simplify right side
    31,813.56x = 576,359,958.30
  5. Step 5: Solve for x
    x = 576,359,958.30/31,813.56
  6. Step 6: Final answer
    x = 18,116.80

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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.