Home / 38,415.20-57,622.80-34,332.80

Finding the Fourth Proportional to 38,415.20, 57,622.80 and 34,332.80

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Solution

The fourth proportional to 38,415.20, 57,622.80 and 34,332.80 is: 51,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,415.20 : 57,622.80 = 34,332.80 : x
  2. Step 2: Convert to fraction form
    38,415.20/57,622.80 = 34,332.80/x
  3. Step 3: Cross multiply
    38,415.20x = 57,622.80 × 34,332.80
  4. Step 4: Simplify right side
    38,415.20x = 1,978,352,067.84
  5. Step 5: Solve for x
    x = 1,978,352,067.84/38,415.20
  6. Step 6: Final answer
    x = 51,499.20

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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.