Home / 31,263.76-43,143.24-17,117.20

Finding the Fourth Proportional to 31,263.76, 43,143.24 and 17,117.20

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Solution

The fourth proportional to 31,263.76, 43,143.24 and 17,117.20 is: 23,621.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,263.76 : 43,143.24 = 17,117.20 : x
  2. Step 2: Convert to fraction form
    31,263.76/43,143.24 = 17,117.20/x
  3. Step 3: Cross multiply
    31,263.76x = 43,143.24 × 17,117.20
  4. Step 4: Simplify right side
    31,263.76x = 738,491,467.73
  5. Step 5: Solve for x
    x = 738,491,467.73/31,263.76
  6. Step 6: Final answer
    x = 23,621.33

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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.