Home / 31,880.25-47,799.87-12,148.04

Finding the Fourth Proportional to 31,880.25, 47,799.87 and 12,148.04

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Solution

The fourth proportional to 31,880.25, 47,799.87 and 12,148.04 is: 18,214.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,880.25 : 47,799.87 = 12,148.04 : x
  2. Step 2: Convert to fraction form
    31,880.25/47,799.87 = 12,148.04/x
  3. Step 3: Cross multiply
    31,880.25x = 47,799.87 × 12,148.04
  4. Step 4: Simplify right side
    31,880.25x = 580,674,493.76
  5. Step 5: Solve for x
    x = 580,674,493.76/31,880.25
  6. Step 6: Final answer
    x = 18,214.24

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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.