Home / 18,439.20-25,268.82-16,667.76

Finding the Fourth Proportional to 18,439.20, 25,268.82 and 16,667.76

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Solution

The fourth proportional to 18,439.20, 25,268.82 and 16,667.76 is: 22,841.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,439.20 : 25,268.82 = 16,667.76 : x
  2. Step 2: Convert to fraction form
    18,439.20/25,268.82 = 16,667.76/x
  3. Step 3: Cross multiply
    18,439.20x = 25,268.82 × 16,667.76
  4. Step 4: Simplify right side
    18,439.20x = 421,174,627.24
  5. Step 5: Solve for x
    x = 421,174,627.24/18,439.20
  6. Step 6: Final answer
    x = 22,841.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.