Home / 38,530.80-57,796.20-28,162.80

Finding the Fourth Proportional to 38,530.80, 57,796.20 and 28,162.80

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Solution

The fourth proportional to 38,530.80, 57,796.20 and 28,162.80 is: 42,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,530.80 : 57,796.20 = 28,162.80 : x
  2. Step 2: Convert to fraction form
    38,530.80/57,796.20 = 28,162.80/x
  3. Step 3: Cross multiply
    38,530.80x = 57,796.20 × 28,162.80
  4. Step 4: Simplify right side
    38,530.80x = 1,627,702,821.36
  5. Step 5: Solve for x
    x = 1,627,702,821.36/38,530.80
  6. Step 6: Final answer
    x = 42,244.20

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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.