Home / 31,462.43-43,417.35-17,121.65

Finding the Fourth Proportional to 31,462.43, 43,417.35 and 17,121.65

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Solution

The fourth proportional to 31,462.43, 43,417.35 and 17,121.65 is: 23,627.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,462.43 : 43,417.35 = 17,121.65 : x
  2. Step 2: Convert to fraction form
    31,462.43/43,417.35 = 17,121.65/x
  3. Step 3: Cross multiply
    31,462.43x = 43,417.35 × 17,121.65
  4. Step 4: Simplify right side
    31,462.43x = 743,376,453.54
  5. Step 5: Solve for x
    x = 743,376,453.54/31,462.43
  6. Step 6: Final answer
    x = 23,627.44

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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.