Home / 18,236.20-25,102.74-15,726.64

Finding the Fourth Proportional to 18,236.20, 25,102.74 and 15,726.64

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Solution

The fourth proportional to 18,236.20, 25,102.74 and 15,726.64 is: 21,648.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,236.20 : 25,102.74 = 15,726.64 : x
  2. Step 2: Convert to fraction form
    18,236.20/25,102.74 = 15,726.64/x
  3. Step 3: Cross multiply
    18,236.20x = 25,102.74 × 15,726.64
  4. Step 4: Simplify right side
    18,236.20x = 394,781,754.99
  5. Step 5: Solve for x
    x = 394,781,754.99/18,236.20
  6. Step 6: Final answer
    x = 21,648.25

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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.