Home / 40,900.03-61,350.82-12,819.47

Finding the Fourth Proportional to 40,900.03, 61,350.82 and 12,819.47

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Solution

The fourth proportional to 40,900.03, 61,350.82 and 12,819.47 is: 19,229.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,900.03 : 61,350.82 = 12,819.47 : x
  2. Step 2: Convert to fraction form
    40,900.03/61,350.82 = 12,819.47/x
  3. Step 3: Cross multiply
    40,900.03x = 61,350.82 × 12,819.47
  4. Step 4: Simplify right side
    40,900.03x = 786,484,887.73
  5. Step 5: Solve for x
    x = 786,484,887.73/40,900.03
  6. Step 6: Final answer
    x = 19,229.44

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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.