Home / 38,916.44-58,380.12-12,612.68

Finding the Fourth Proportional to 38,916.44, 58,380.12 and 12,612.68

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Solution

The fourth proportional to 38,916.44, 58,380.12 and 12,612.68 is: 18,920.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,916.44 : 58,380.12 = 12,612.68 : x
  2. Step 2: Convert to fraction form
    38,916.44/58,380.12 = 12,612.68/x
  3. Step 3: Cross multiply
    38,916.44x = 58,380.12 × 12,612.68
  4. Step 4: Simplify right side
    38,916.44x = 736,329,771.92
  5. Step 5: Solve for x
    x = 736,329,771.92/38,916.44
  6. Step 6: Final answer
    x = 18,920.79

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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.