Home / 20,694.06-28,557.95-11,262.69

Finding the Fourth Proportional to 20,694.06, 28,557.95 and 11,262.69

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Solution

The fourth proportional to 20,694.06, 28,557.95 and 11,262.69 is: 15,542.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.06 : 28,557.95 = 11,262.69 : x
  2. Step 2: Convert to fraction form
    20,694.06/28,557.95 = 11,262.69/x
  3. Step 3: Cross multiply
    20,694.06x = 28,557.95 × 11,262.69
  4. Step 4: Simplify right side
    20,694.06x = 321,639,281.57
  5. Step 5: Solve for x
    x = 321,639,281.57/20,694.06
  6. Step 6: Final answer
    x = 15,542.59

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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.