Home / 27,769.81-38,322.44-19,400.89

Finding the Fourth Proportional to 27,769.81, 38,322.44 and 19,400.89

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Solution

The fourth proportional to 27,769.81, 38,322.44 and 19,400.89 is: 26,773.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,769.81 : 38,322.44 = 19,400.89 : x
  2. Step 2: Convert to fraction form
    27,769.81/38,322.44 = 19,400.89/x
  3. Step 3: Cross multiply
    27,769.81x = 38,322.44 × 19,400.89
  4. Step 4: Simplify right side
    27,769.81x = 743,489,442.97
  5. Step 5: Solve for x
    x = 743,489,442.97/27,769.81
  6. Step 6: Final answer
    x = 26,773.30

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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.