Home / 31,363.14-43,280.97-17,215.68

Finding the Fourth Proportional to 31,363.14, 43,280.97 and 17,215.68

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Solution

The fourth proportional to 31,363.14, 43,280.97 and 17,215.68 is: 23,757.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,363.14 : 43,280.97 = 17,215.68 : x
  2. Step 2: Convert to fraction form
    31,363.14/43,280.97 = 17,215.68/x
  3. Step 3: Cross multiply
    31,363.14x = 43,280.97 × 17,215.68
  4. Step 4: Simplify right side
    31,363.14x = 745,111,329.61
  5. Step 5: Solve for x
    x = 745,111,329.61/31,363.14
  6. Step 6: Final answer
    x = 23,757.55

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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.