Home / 40,203.64-60,314.22-12,121.55

Finding the Fourth Proportional to 40,203.64, 60,314.22 and 12,121.55

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Solution

The fourth proportional to 40,203.64, 60,314.22 and 12,121.55 is: 18,184.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,203.64 : 60,314.22 = 12,121.55 : x
  2. Step 2: Convert to fraction form
    40,203.64/60,314.22 = 12,121.55/x
  3. Step 3: Cross multiply
    40,203.64x = 60,314.22 × 12,121.55
  4. Step 4: Simplify right side
    40,203.64x = 731,101,758.05
  5. Step 5: Solve for x
    x = 731,101,758.05/40,203.64
  6. Step 6: Final answer
    x = 18,184.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.