Home / 40,062.96-60,069-21,331.44

Finding the Fourth Proportional to 40,062.96, 60,069 and 21,331.44

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Solution

The fourth proportional to 40,062.96, 60,069 and 21,331.44 is: 31,983.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,062.96 : 60,069 = 21,331.44 : x
  2. Step 2: Convert to fraction form
    40,062.96/60,069 = 21,331.44/x
  3. Step 3: Cross multiply
    40,062.96x = 60,069 × 21,331.44
  4. Step 4: Simplify right side
    40,062.96x = 1,281,358,269.36
  5. Step 5: Solve for x
    x = 1,281,358,269.36/40,062.96
  6. Step 6: Final answer
    x = 31,983.61

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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.