Home / 38,455.20-57,682.80-30,160.80

Finding the Fourth Proportional to 38,455.20, 57,682.80 and 30,160.80

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Solution

The fourth proportional to 38,455.20, 57,682.80 and 30,160.80 is: 45,241.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,455.20 : 57,682.80 = 30,160.80 : x
  2. Step 2: Convert to fraction form
    38,455.20/57,682.80 = 30,160.80/x
  3. Step 3: Cross multiply
    38,455.20x = 57,682.80 × 30,160.80
  4. Step 4: Simplify right side
    38,455.20x = 1,739,759,394.24
  5. Step 5: Solve for x
    x = 1,739,759,394.24/38,455.20
  6. Step 6: Final answer
    x = 45,241.20

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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.