Home / 38,949.63-58,432.31-12,299.78

Finding the Fourth Proportional to 38,949.63, 58,432.31 and 12,299.78

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Solution

The fourth proportional to 38,949.63, 58,432.31 and 12,299.78 is: 18,452.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,949.63 : 58,432.31 = 12,299.78 : x
  2. Step 2: Convert to fraction form
    38,949.63/58,432.31 = 12,299.78/x
  3. Step 3: Cross multiply
    38,949.63x = 58,432.31 × 12,299.78
  4. Step 4: Simplify right side
    38,949.63x = 718,704,690.52
  5. Step 5: Solve for x
    x = 718,704,690.52/38,949.63
  6. Step 6: Final answer
    x = 18,452.16

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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.