Home / 26,142.55-39,209.70-21,728.55

Finding the Fourth Proportional to 26,142.55, 39,209.70 and 21,728.55

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Solution

The fourth proportional to 26,142.55, 39,209.70 and 21,728.55 is: 32,589.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,142.55 : 39,209.70 = 21,728.55 : x
  2. Step 2: Convert to fraction form
    26,142.55/39,209.70 = 21,728.55/x
  3. Step 3: Cross multiply
    26,142.55x = 39,209.70 × 21,728.55
  4. Step 4: Simplify right side
    26,142.55x = 851,970,155.45
  5. Step 5: Solve for x
    x = 851,970,155.45/26,142.55
  6. Step 6: Final answer
    x = 32,589.41

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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.