Home / 31,621.52-43,638-17,474.60

Finding the Fourth Proportional to 31,621.52, 43,638 and 17,474.60

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Solution

The fourth proportional to 31,621.52, 43,638 and 17,474.60 is: 24,115.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,621.52 : 43,638 = 17,474.60 : x
  2. Step 2: Convert to fraction form
    31,621.52/43,638 = 17,474.60/x
  3. Step 3: Cross multiply
    31,621.52x = 43,638 × 17,474.60
  4. Step 4: Simplify right side
    31,621.52x = 762,556,594.80
  5. Step 5: Solve for x
    x = 762,556,594.80/31,621.52
  6. Step 6: Final answer
    x = 24,115.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.