Home / 23,220.38-31,986.68-19,806.23

Finding the Fourth Proportional to 23,220.38, 31,986.68 and 19,806.23

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Solution

The fourth proportional to 23,220.38, 31,986.68 and 19,806.23 is: 27,283.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,220.38 : 31,986.68 = 19,806.23 : x
  2. Step 2: Convert to fraction form
    23,220.38/31,986.68 = 19,806.23/x
  3. Step 3: Cross multiply
    23,220.38x = 31,986.68 × 19,806.23
  4. Step 4: Simplify right side
    23,220.38x = 633,535,282.05
  5. Step 5: Solve for x
    x = 633,535,282.05/23,220.38
  6. Step 6: Final answer
    x = 27,283.59

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Half scale
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Double scale
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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.