Home / 38,815.20-58,222.80-12,537.99

Finding the Fourth Proportional to 38,815.20, 58,222.80 and 12,537.99

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Solution

The fourth proportional to 38,815.20, 58,222.80 and 12,537.99 is: 18,806.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,815.20 : 58,222.80 = 12,537.99 : x
  2. Step 2: Convert to fraction form
    38,815.20/58,222.80 = 12,537.99/x
  3. Step 3: Cross multiply
    38,815.20x = 58,222.80 × 12,537.99
  4. Step 4: Simplify right side
    38,815.20x = 729,996,884.17
  5. Step 5: Solve for x
    x = 729,996,884.17/38,815.20
  6. Step 6: Final answer
    x = 18,806.99

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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.