Home / 31,363.44-43,281.61-18,619.18

Finding the Fourth Proportional to 31,363.44, 43,281.61 and 18,619.18

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Solution

The fourth proportional to 31,363.44, 43,281.61 and 18,619.18 is: 25,694.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,363.44 : 43,281.61 = 18,619.18 : x
  2. Step 2: Convert to fraction form
    31,363.44/43,281.61 = 18,619.18/x
  3. Step 3: Cross multiply
    31,363.44x = 43,281.61 × 18,619.18
  4. Step 4: Simplify right side
    31,363.44x = 805,867,932.53
  5. Step 5: Solve for x
    x = 805,867,932.53/31,363.44
  6. Step 6: Final answer
    x = 25,694.50

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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.