Home / 39,310.32-54,211.20-30,343.68

Finding the Fourth Proportional to 39,310.32, 54,211.20 and 30,343.68

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Solution

The fourth proportional to 39,310.32, 54,211.20 and 30,343.68 is: 41,845.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,310.32 : 54,211.20 = 30,343.68 : x
  2. Step 2: Convert to fraction form
    39,310.32/54,211.20 = 30,343.68/x
  3. Step 3: Cross multiply
    39,310.32x = 54,211.20 × 30,343.68
  4. Step 4: Simplify right side
    39,310.32x = 1,644,967,305.22
  5. Step 5: Solve for x
    x = 1,644,967,305.22/39,310.32
  6. Step 6: Final answer
    x = 41,845.69

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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.