Home / 31,320.43-43,221.29-17,891.42

Finding the Fourth Proportional to 31,320.43, 43,221.29 and 17,891.42

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Solution

The fourth proportional to 31,320.43, 43,221.29 and 17,891.42 is: 24,689.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,320.43 : 43,221.29 = 17,891.42 : x
  2. Step 2: Convert to fraction form
    31,320.43/43,221.29 = 17,891.42/x
  3. Step 3: Cross multiply
    31,320.43x = 43,221.29 × 17,891.42
  4. Step 4: Simplify right side
    31,320.43x = 773,289,946.77
  5. Step 5: Solve for x
    x = 773,289,946.77/31,320.43
  6. Step 6: Final answer
    x = 24,689.64

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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.