Home / 25,494.18-35,142.57-20,770.26

Finding the Fourth Proportional to 25,494.18, 35,142.57 and 20,770.26

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Solution

The fourth proportional to 25,494.18, 35,142.57 and 20,770.26 is: 28,630.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,494.18 : 35,142.57 = 20,770.26 : x
  2. Step 2: Convert to fraction form
    25,494.18/35,142.57 = 20,770.26/x
  3. Step 3: Cross multiply
    25,494.18x = 35,142.57 × 20,770.26
  4. Step 4: Simplify right side
    25,494.18x = 729,920,315.97
  5. Step 5: Solve for x
    x = 729,920,315.97/25,494.18
  6. Step 6: Final answer
    x = 28,630.86

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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.