Home / 40,215.19-60,321.27-12,134.49

Finding the Fourth Proportional to 40,215.19, 60,321.27 and 12,134.49

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Solution

The fourth proportional to 40,215.19, 60,321.27 and 12,134.49 is: 18,201.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,215.19 : 60,321.27 = 12,134.49 : x
  2. Step 2: Convert to fraction form
    40,215.19/60,321.27 = 12,134.49/x
  3. Step 3: Cross multiply
    40,215.19x = 60,321.27 × 12,134.49
  4. Step 4: Simplify right side
    40,215.19x = 731,968,028.30
  5. Step 5: Solve for x
    x = 731,968,028.30/40,215.19
  6. Step 6: Final answer
    x = 18,201.28

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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.