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Finding the Fourth Proportional to 38,481.60, 57,722.40 and 27,206.40

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Solution

The fourth proportional to 38,481.60, 57,722.40 and 27,206.40 is: 40,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,481.60 : 57,722.40 = 27,206.40 : x
  2. Step 2: Convert to fraction form
    38,481.60/57,722.40 = 27,206.40/x
  3. Step 3: Cross multiply
    38,481.60x = 57,722.40 × 27,206.40
  4. Step 4: Simplify right side
    38,481.60x = 1,570,418,703.36
  5. Step 5: Solve for x
    x = 1,570,418,703.36/38,481.60
  6. Step 6: Final answer
    x = 40,809.60

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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.