Home / 31,424.28-43,366.62-17,278.20

Finding the Fourth Proportional to 31,424.28, 43,366.62 and 17,278.20

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Solution

The fourth proportional to 31,424.28, 43,366.62 and 17,278.20 is: 23,844.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,424.28 : 43,366.62 = 17,278.20 : x
  2. Step 2: Convert to fraction form
    31,424.28/43,366.62 = 17,278.20/x
  3. Step 3: Cross multiply
    31,424.28x = 43,366.62 × 17,278.20
  4. Step 4: Simplify right side
    31,424.28x = 749,297,133.68
  5. Step 5: Solve for x
    x = 749,297,133.68/31,424.28
  6. Step 6: Final answer
    x = 23,844.53

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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.