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Finding the Fourth Proportional to 25,896.80, 38,874.40 and 17,148.80

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Solution

The fourth proportional to 25,896.80, 38,874.40 and 17,148.80 is: 25,742.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,896.80 : 38,874.40 = 17,148.80 : x
  2. Step 2: Convert to fraction form
    25,896.80/38,874.40 = 17,148.80/x
  3. Step 3: Cross multiply
    25,896.80x = 38,874.40 × 17,148.80
  4. Step 4: Simplify right side
    25,896.80x = 666,649,310.72
  5. Step 5: Solve for x
    x = 666,649,310.72/25,896.80
  6. Step 6: Final answer
    x = 25,742.54

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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.