Home / 31,568.97-43,562.70-18,821.19

Finding the Fourth Proportional to 31,568.97, 43,562.70 and 18,821.19

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Solution

The fourth proportional to 31,568.97, 43,562.70 and 18,821.19 is: 25,971.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,568.97 : 43,562.70 = 18,821.19 : x
  2. Step 2: Convert to fraction form
    31,568.97/43,562.70 = 18,821.19/x
  3. Step 3: Cross multiply
    31,568.97x = 43,562.70 × 18,821.19
  4. Step 4: Simplify right side
    31,568.97x = 819,901,853.61
  5. Step 5: Solve for x
    x = 819,901,853.61/31,568.97
  6. Step 6: Final answer
    x = 25,971.76

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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.