Home / 31,219.28-43,131.12-26,175.68

Finding the Fourth Proportional to 31,219.28, 43,131.12 and 26,175.68

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Solution

The fourth proportional to 31,219.28, 43,131.12 and 26,175.68 is: 36,163.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,219.28 : 43,131.12 = 26,175.68 : x
  2. Step 2: Convert to fraction form
    31,219.28/43,131.12 = 26,175.68/x
  3. Step 3: Cross multiply
    31,219.28x = 43,131.12 × 26,175.68
  4. Step 4: Simplify right side
    31,219.28x = 1,128,986,395.16
  5. Step 5: Solve for x
    x = 1,128,986,395.16/31,219.28
  6. Step 6: Final answer
    x = 36,163.11

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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.