Home / 20,235.62-30,356.00-10,862.78

Finding the Fourth Proportional to 20,235.62, 30,356.00 and 10,862.78

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Solution

The fourth proportional to 20,235.62, 30,356.00 and 10,862.78 is: 16,295.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.62 : 30,356.00 = 10,862.78 : x
  2. Step 2: Convert to fraction form
    20,235.62/30,356.00 = 10,862.78/x
  3. Step 3: Cross multiply
    20,235.62x = 30,356.00 × 10,862.78
  4. Step 4: Simplify right side
    20,235.62x = 329,750,425.06
  5. Step 5: Solve for x
    x = 329,750,425.06/20,235.62
  6. Step 6: Final answer
    x = 16,295.55

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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.