Home / 38,961.78-58,405.90-18,958.62

Finding the Fourth Proportional to 38,961.78, 58,405.90 and 18,958.62

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Solution

The fourth proportional to 38,961.78, 58,405.90 and 18,958.62 is: 28,420.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,961.78 : 58,405.90 = 18,958.62 : x
  2. Step 2: Convert to fraction form
    38,961.78/58,405.90 = 18,958.62/x
  3. Step 3: Cross multiply
    38,961.78x = 58,405.90 × 18,958.62
  4. Step 4: Simplify right side
    38,961.78x = 1,107,295,263.86
  5. Step 5: Solve for x
    x = 1,107,295,263.86/38,961.78
  6. Step 6: Final answer
    x = 28,420.04

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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.