Home / 27,661.44-38,142.54-18,693.38

Finding the Fourth Proportional to 27,661.44, 38,142.54 and 18,693.38

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Solution

The fourth proportional to 27,661.44, 38,142.54 and 18,693.38 is: 25,776.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,661.44 : 38,142.54 = 18,693.38 : x
  2. Step 2: Convert to fraction form
    27,661.44/38,142.54 = 18,693.38/x
  3. Step 3: Cross multiply
    27,661.44x = 38,142.54 × 18,693.38
  4. Step 4: Simplify right side
    27,661.44x = 713,012,994.39
  5. Step 5: Solve for x
    x = 713,012,994.39/27,661.44
  6. Step 6: Final answer
    x = 25,776.42

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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.