Home / 40,268.38-55,611.71-30,180.84

Finding the Fourth Proportional to 40,268.38, 55,611.71 and 30,180.84

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Solution

The fourth proportional to 40,268.38, 55,611.71 and 30,180.84 is: 41,680.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,268.38 : 55,611.71 = 30,180.84 : x
  2. Step 2: Convert to fraction form
    40,268.38/55,611.71 = 30,180.84/x
  3. Step 3: Cross multiply
    40,268.38x = 55,611.71 × 30,180.84
  4. Step 4: Simplify right side
    40,268.38x = 1,678,408,259.71
  5. Step 5: Solve for x
    x = 1,678,408,259.71/40,268.38
  6. Step 6: Final answer
    x = 41,680.55

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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.