Home / 40,900.41-61,351.38-12,819.84

Finding the Fourth Proportional to 40,900.41, 61,351.38 and 12,819.84

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Solution

The fourth proportional to 40,900.41, 61,351.38 and 12,819.84 is: 19,230.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,900.41 : 61,351.38 = 12,819.84 : x
  2. Step 2: Convert to fraction form
    40,900.41/61,351.38 = 12,819.84/x
  3. Step 3: Cross multiply
    40,900.41x = 61,351.38 × 12,819.84
  4. Step 4: Simplify right side
    40,900.41x = 786,514,875.38
  5. Step 5: Solve for x
    x = 786,514,875.38/40,900.41
  6. Step 6: Final answer
    x = 19,230.00

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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.