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Finding the Fourth Proportional to 25,189.54, 34,764.02 and 18,805.05

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Solution

The fourth proportional to 25,189.54, 34,764.02 and 18,805.05 is: 25,952.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,189.54 : 34,764.02 = 18,805.05 : x
  2. Step 2: Convert to fraction form
    25,189.54/34,764.02 = 18,805.05/x
  3. Step 3: Cross multiply
    25,189.54x = 34,764.02 × 18,805.05
  4. Step 4: Simplify right side
    25,189.54x = 653,739,134.30
  5. Step 5: Solve for x
    x = 653,739,134.30/25,189.54
  6. Step 6: Final answer
    x = 25,952.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.