Home / 20,942.62-28,901.00-11,382.59

Finding the Fourth Proportional to 20,942.62, 28,901.00 and 11,382.59

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Solution

The fourth proportional to 20,942.62, 28,901.00 and 11,382.59 is: 15,708.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,942.62 : 28,901.00 = 11,382.59 : x
  2. Step 2: Convert to fraction form
    20,942.62/28,901.00 = 11,382.59/x
  3. Step 3: Cross multiply
    20,942.62x = 28,901.00 × 11,382.59
  4. Step 4: Simplify right side
    20,942.62x = 328,968,334.30
  5. Step 5: Solve for x
    x = 328,968,334.30/20,942.62
  6. Step 6: Final answer
    x = 15,708.08

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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.