Home / 31,345.60-43,256.98-17,198.55

Finding the Fourth Proportional to 31,345.60, 43,256.98 and 17,198.55

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Solution

The fourth proportional to 31,345.60, 43,256.98 and 17,198.55 is: 23,734.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,345.60 : 43,256.98 = 17,198.55 : x
  2. Step 2: Convert to fraction form
    31,345.60/43,256.98 = 17,198.55/x
  3. Step 3: Cross multiply
    31,345.60x = 43,256.98 × 17,198.55
  4. Step 4: Simplify right side
    31,345.60x = 743,957,117.09
  5. Step 5: Solve for x
    x = 743,957,117.09/31,345.60
  6. Step 6: Final answer
    x = 23,734.02

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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.