Home / 38,141.20-57,276.60-28,291.60

Finding the Fourth Proportional to 38,141.20, 57,276.60 and 28,291.60

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Solution

The fourth proportional to 38,141.20, 57,276.60 and 28,291.60 is: 42,485.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,141.20 : 57,276.60 = 28,291.60 : x
  2. Step 2: Convert to fraction form
    38,141.20/57,276.60 = 28,291.60/x
  3. Step 3: Cross multiply
    38,141.20x = 57,276.60 × 28,291.60
  4. Step 4: Simplify right side
    38,141.20x = 1,620,446,656.56
  5. Step 5: Solve for x
    x = 1,620,446,656.56/38,141.20
  6. Step 6: Final answer
    x = 42,485.47

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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.