Home / 40,899.72-61,350.35-12,819.15

Finding the Fourth Proportional to 40,899.72, 61,350.35 and 12,819.15

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Solution

The fourth proportional to 40,899.72, 61,350.35 and 12,819.15 is: 19,228.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,899.72 : 61,350.35 = 12,819.15 : x
  2. Step 2: Convert to fraction form
    40,899.72/61,350.35 = 12,819.15/x
  3. Step 3: Cross multiply
    40,899.72x = 61,350.35 × 12,819.15
  4. Step 4: Simplify right side
    40,899.72x = 786,459,339.20
  5. Step 5: Solve for x
    x = 786,459,339.20/40,899.72
  6. Step 6: Final answer
    x = 19,228.97

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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.