Home / 31,309.80-43,209.18-17,163.24

Finding the Fourth Proportional to 31,309.80, 43,209.18 and 17,163.24

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Solution

The fourth proportional to 31,309.80, 43,209.18 and 17,163.24 is: 23,686.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,309.80 : 43,209.18 = 17,163.24 : x
  2. Step 2: Convert to fraction form
    31,309.80/43,209.18 = 17,163.24/x
  3. Step 3: Cross multiply
    31,309.80x = 43,209.18 × 17,163.24
  4. Step 4: Simplify right side
    31,309.80x = 741,609,526.54
  5. Step 5: Solve for x
    x = 741,609,526.54/31,309.80
  6. Step 6: Final answer
    x = 23,686.18

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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.