Home / 18,634.28-25,721.70-18,081.32

Finding the Fourth Proportional to 18,634.28, 25,721.70 and 18,081.32

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Solution

The fourth proportional to 18,634.28, 25,721.70 and 18,081.32 is: 24,958.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,634.28 : 25,721.70 = 18,081.32 : x
  2. Step 2: Convert to fraction form
    18,634.28/25,721.70 = 18,081.32/x
  3. Step 3: Cross multiply
    18,634.28x = 25,721.70 × 18,081.32
  4. Step 4: Simplify right side
    18,634.28x = 465,082,288.64
  5. Step 5: Solve for x
    x = 465,082,288.64/18,634.28
  6. Step 6: Final answer
    x = 24,958.43

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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.