Home / 28,201.46-38,933.10-18,002.75

Finding the Fourth Proportional to 28,201.46, 38,933.10 and 18,002.75

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Solution

The fourth proportional to 28,201.46, 38,933.10 and 18,002.75 is: 24,853.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,201.46 : 38,933.10 = 18,002.75 : x
  2. Step 2: Convert to fraction form
    28,201.46/38,933.10 = 18,002.75/x
  3. Step 3: Cross multiply
    28,201.46x = 38,933.10 × 18,002.75
  4. Step 4: Simplify right side
    28,201.46x = 700,902,671.36
  5. Step 5: Solve for x
    x = 700,902,671.36/28,201.46
  6. Step 6: Final answer
    x = 24,853.42

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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.