Home / 38,219.20-57,307.72-20,470.66

Finding the Fourth Proportional to 38,219.20, 57,307.72 and 20,470.66

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Solution

The fourth proportional to 38,219.20, 57,307.72 and 20,470.66 is: 30,694.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,219.20 : 57,307.72 = 20,470.66 : x
  2. Step 2: Convert to fraction form
    38,219.20/57,307.72 = 20,470.66/x
  3. Step 3: Cross multiply
    38,219.20x = 57,307.72 × 20,470.66
  4. Step 4: Simplify right side
    38,219.20x = 1,173,126,851.50
  5. Step 5: Solve for x
    x = 1,173,126,851.50/38,219.20
  6. Step 6: Final answer
    x = 30,694.70

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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.