Home / 25,144.92-34,743.78-20,665.26

Finding the Fourth Proportional to 25,144.92, 34,743.78 and 20,665.26

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Solution

The fourth proportional to 25,144.92, 34,743.78 and 20,665.26 is: 28,554.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,144.92 : 34,743.78 = 20,665.26 : x
  2. Step 2: Convert to fraction form
    25,144.92/34,743.78 = 20,665.26/x
  3. Step 3: Cross multiply
    25,144.92x = 34,743.78 × 20,665.26
  4. Step 4: Simplify right side
    25,144.92x = 717,989,247.08
  5. Step 5: Solve for x
    x = 717,989,247.08/25,144.92
  6. Step 6: Final answer
    x = 28,554.05

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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.