Home / 18,419.32-25,433.66-15,016.88

Finding the Fourth Proportional to 18,419.32, 25,433.66 and 15,016.88

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Solution

The fourth proportional to 18,419.32, 25,433.66 and 15,016.88 is: 20,735.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.32 : 25,433.66 = 15,016.88 : x
  2. Step 2: Convert to fraction form
    18,419.32/25,433.66 = 15,016.88/x
  3. Step 3: Cross multiply
    18,419.32x = 25,433.66 × 15,016.88
  4. Step 4: Simplify right side
    18,419.32x = 381,934,220.18
  5. Step 5: Solve for x
    x = 381,934,220.18/18,419.32
  6. Step 6: Final answer
    x = 20,735.52

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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.