Home / 31,042.65-42,841.85-19,112.97

Finding the Fourth Proportional to 31,042.65, 42,841.85 and 19,112.97

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Solution

The fourth proportional to 31,042.65, 42,841.85 and 19,112.97 is: 26,377.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,042.65 : 42,841.85 = 19,112.97 : x
  2. Step 2: Convert to fraction form
    31,042.65/42,841.85 = 19,112.97/x
  3. Step 3: Cross multiply
    31,042.65x = 42,841.85 × 19,112.97
  4. Step 4: Simplify right side
    31,042.65x = 818,834,993.79
  5. Step 5: Solve for x
    x = 818,834,993.79/31,042.65
  6. Step 6: Final answer
    x = 26,377.74

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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.