Home / 38,111.20-57,231.60-28,261.60

Finding the Fourth Proportional to 38,111.20, 57,231.60 and 28,261.60

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Solution

The fourth proportional to 38,111.20, 57,231.60 and 28,261.60 is: 42,440.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,111.20 : 57,231.60 = 28,261.60 : x
  2. Step 2: Convert to fraction form
    38,111.20/57,231.60 = 28,261.60/x
  3. Step 3: Cross multiply
    38,111.20x = 57,231.60 × 28,261.60
  4. Step 4: Simplify right side
    38,111.20x = 1,617,456,586.56
  5. Step 5: Solve for x
    x = 1,617,456,586.56/38,111.20
  6. Step 6: Final answer
    x = 42,440.45

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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.