Home / 38,220.60-57,314.70-18,505.20

Finding the Fourth Proportional to 38,220.60, 57,314.70 and 18,505.20

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Solution

The fourth proportional to 38,220.60, 57,314.70 and 18,505.20 is: 27,749.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,220.60 : 57,314.70 = 18,505.20 : x
  2. Step 2: Convert to fraction form
    38,220.60/57,314.70 = 18,505.20/x
  3. Step 3: Cross multiply
    38,220.60x = 57,314.70 × 18,505.20
  4. Step 4: Simplify right side
    38,220.60x = 1,060,619,986.44
  5. Step 5: Solve for x
    x = 1,060,619,986.44/38,220.60
  6. Step 6: Final answer
    x = 27,749.96

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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.