Home / 38,774.85-58,173.66-12,478.92

Finding the Fourth Proportional to 38,774.85, 58,173.66 and 12,478.92

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Solution

The fourth proportional to 38,774.85, 58,173.66 and 12,478.92 is: 18,722.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,774.85 : 58,173.66 = 12,478.92 : x
  2. Step 2: Convert to fraction form
    38,774.85/58,173.66 = 12,478.92/x
  3. Step 3: Cross multiply
    38,774.85x = 58,173.66 × 12,478.92
  4. Step 4: Simplify right side
    38,774.85x = 725,944,449.25
  5. Step 5: Solve for x
    x = 725,944,449.25/38,774.85
  6. Step 6: Final answer
    x = 18,722.04

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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.