Home / 25,768.24-35,631.75-20,453.83

Finding the Fourth Proportional to 25,768.24, 35,631.75 and 20,453.83

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Solution

The fourth proportional to 25,768.24, 35,631.75 and 20,453.83 is: 28,283.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,768.24 : 35,631.75 = 20,453.83 : x
  2. Step 2: Convert to fraction form
    25,768.24/35,631.75 = 20,453.83/x
  3. Step 3: Cross multiply
    25,768.24x = 35,631.75 × 20,453.83
  4. Step 4: Simplify right side
    25,768.24x = 728,805,757.10
  5. Step 5: Solve for x
    x = 728,805,757.10/25,768.24
  6. Step 6: Final answer
    x = 28,283.10

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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.