Home / 36,421.38-50,111.22-28,449.78

Finding the Fourth Proportional to 36,421.38, 50,111.22 and 28,449.78

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Solution

The fourth proportional to 36,421.38, 50,111.22 and 28,449.78 is: 39,143.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,421.38 : 50,111.22 = 28,449.78 : x
  2. Step 2: Convert to fraction form
    36,421.38/50,111.22 = 28,449.78/x
  3. Step 3: Cross multiply
    36,421.38x = 50,111.22 × 28,449.78
  4. Step 4: Simplify right side
    36,421.38x = 1,425,653,184.53
  5. Step 5: Solve for x
    x = 1,425,653,184.53/36,421.38
  6. Step 6: Final answer
    x = 39,143.30

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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.