Home / 18,928.36-25,932-18,218.96

Finding the Fourth Proportional to 18,928.36, 25,932 and 18,218.96

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Solution

The fourth proportional to 18,928.36, 25,932 and 18,218.96 is: 24,960.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928.36 : 25,932 = 18,218.96 : x
  2. Step 2: Convert to fraction form
    18,928.36/25,932 = 18,218.96/x
  3. Step 3: Cross multiply
    18,928.36x = 25,932 × 18,218.96
  4. Step 4: Simplify right side
    18,928.36x = 472,454,070.72
  5. Step 5: Solve for x
    x = 472,454,070.72/18,928.36
  6. Step 6: Final answer
    x = 24,960.12

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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.