Home / 25,475.20-38,241.60-19,657.60

Finding the Fourth Proportional to 25,475.20, 38,241.60 and 19,657.60

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Solution

The fourth proportional to 25,475.20, 38,241.60 and 19,657.60 is: 29,508.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,475.20 : 38,241.60 = 19,657.60 : x
  2. Step 2: Convert to fraction form
    25,475.20/38,241.60 = 19,657.60/x
  3. Step 3: Cross multiply
    25,475.20x = 38,241.60 × 19,657.60
  4. Step 4: Simplify right side
    25,475.20x = 751,738,076.16
  5. Step 5: Solve for x
    x = 751,738,076.16/25,475.20
  6. Step 6: Final answer
    x = 29,508.62

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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.