Home / 20,302.62-30,422.01-15,616.98

Finding the Fourth Proportional to 20,302.62, 30,422.01 and 15,616.98

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Solution

The fourth proportional to 20,302.62, 30,422.01 and 15,616.98 is: 23,400.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.62 : 30,422.01 = 15,616.98 : x
  2. Step 2: Convert to fraction form
    20,302.62/30,422.01 = 15,616.98/x
  3. Step 3: Cross multiply
    20,302.62x = 30,422.01 × 15,616.98
  4. Step 4: Simplify right side
    20,302.62x = 475,099,921.73
  5. Step 5: Solve for x
    x = 475,099,921.73/20,302.62
  6. Step 6: Final answer
    x = 23,400.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.