Home / 31,511.19-47,217.56-26,811.87

Finding the Fourth Proportional to 31,511.19, 47,217.56 and 26,811.87

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Solution

The fourth proportional to 31,511.19, 47,217.56 and 26,811.87 is: 40,175.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.19 : 47,217.56 = 26,811.87 : x
  2. Step 2: Convert to fraction form
    31,511.19/47,217.56 = 26,811.87/x
  3. Step 3: Cross multiply
    31,511.19x = 47,217.56 × 26,811.87
  4. Step 4: Simplify right side
    31,511.19x = 1,265,991,080.44
  5. Step 5: Solve for x
    x = 1,265,991,080.44/31,511.19
  6. Step 6: Final answer
    x = 40,175.92

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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.