Home / 31,381.06-43,313.62-17,959.97

Finding the Fourth Proportional to 31,381.06, 43,313.62 and 17,959.97

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Solution

The fourth proportional to 31,381.06, 43,313.62 and 17,959.97 is: 24,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,381.06 : 43,313.62 = 17,959.97 : x
  2. Step 2: Convert to fraction form
    31,381.06/43,313.62 = 17,959.97/x
  3. Step 3: Cross multiply
    31,381.06x = 43,313.62 × 17,959.97
  4. Step 4: Simplify right side
    31,381.06x = 777,911,264.29
  5. Step 5: Solve for x
    x = 777,911,264.29/31,381.06
  6. Step 6: Final answer
    x = 24,789.20

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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.