Home / 31,449.19-43,405.46-18,874.75

Finding the Fourth Proportional to 31,449.19, 43,405.46 and 18,874.75

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Solution

The fourth proportional to 31,449.19, 43,405.46 and 18,874.75 is: 26,050.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,449.19 : 43,405.46 = 18,874.75 : x
  2. Step 2: Convert to fraction form
    31,449.19/43,405.46 = 18,874.75/x
  3. Step 3: Cross multiply
    31,449.19x = 43,405.46 × 18,874.75
  4. Step 4: Simplify right side
    31,449.19x = 819,267,206.14
  5. Step 5: Solve for x
    x = 819,267,206.14/31,449.19
  6. Step 6: Final answer
    x = 26,050.50

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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.