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Finding the Fourth Proportional to 38,603.60, 57,905.40 and 36,270.80

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Solution

The fourth proportional to 38,603.60, 57,905.40 and 36,270.80 is: 54,406.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,603.60 : 57,905.40 = 36,270.80 : x
  2. Step 2: Convert to fraction form
    38,603.60/57,905.40 = 36,270.80/x
  3. Step 3: Cross multiply
    38,603.60x = 57,905.40 × 36,270.80
  4. Step 4: Simplify right side
    38,603.60x = 2,100,275,182.32
  5. Step 5: Solve for x
    x = 2,100,275,182.32/38,603.60
  6. Step 6: Final answer
    x = 54,406.20

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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.