Home / 31,636.57-43,660.35-18,207.53

Finding the Fourth Proportional to 31,636.57, 43,660.35 and 18,207.53

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Solution

The fourth proportional to 31,636.57, 43,660.35 and 18,207.53 is: 25,127.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,636.57 : 43,660.35 = 18,207.53 : x
  2. Step 2: Convert to fraction form
    31,636.57/43,660.35 = 18,207.53/x
  3. Step 3: Cross multiply
    31,636.57x = 43,660.35 × 18,207.53
  4. Step 4: Simplify right side
    31,636.57x = 794,947,132.44
  5. Step 5: Solve for x
    x = 794,947,132.44/31,636.57
  6. Step 6: Final answer
    x = 25,127.48

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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.