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Finding the Fourth Proportional to 38,073.60, 57,110.40 and 33,991.20

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Solution

The fourth proportional to 38,073.60, 57,110.40 and 33,991.20 is: 50,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,073.60 : 57,110.40 = 33,991.20 : x
  2. Step 2: Convert to fraction form
    38,073.60/57,110.40 = 33,991.20/x
  3. Step 3: Cross multiply
    38,073.60x = 57,110.40 × 33,991.20
  4. Step 4: Simplify right side
    38,073.60x = 1,941,251,028.48
  5. Step 5: Solve for x
    x = 1,941,251,028.48/38,073.60
  6. Step 6: Final answer
    x = 50,986.80

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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.