Home / 31,479.71-43,441.88-17,332.56

Finding the Fourth Proportional to 31,479.71, 43,441.88 and 17,332.56

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Solution

The fourth proportional to 31,479.71, 43,441.88 and 17,332.56 is: 23,918.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,479.71 : 43,441.88 = 17,332.56 : x
  2. Step 2: Convert to fraction form
    31,479.71/43,441.88 = 17,332.56/x
  3. Step 3: Cross multiply
    31,479.71x = 43,441.88 × 17,332.56
  4. Step 4: Simplify right side
    31,479.71x = 752,958,904.95
  5. Step 5: Solve for x
    x = 752,958,904.95/31,479.71
  6. Step 6: Final answer
    x = 23,918.87

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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.