Home / 27,803.54-38,369.13-15,866.75

Finding the Fourth Proportional to 27,803.54, 38,369.13 and 15,866.75

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Solution

The fourth proportional to 27,803.54, 38,369.13 and 15,866.75 is: 21,896.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,803.54 : 38,369.13 = 15,866.75 : x
  2. Step 2: Convert to fraction form
    27,803.54/38,369.13 = 15,866.75/x
  3. Step 3: Cross multiply
    27,803.54x = 38,369.13 × 15,866.75
  4. Step 4: Simplify right side
    27,803.54x = 608,793,393.43
  5. Step 5: Solve for x
    x = 608,793,393.43/27,803.54
  6. Step 6: Final answer
    x = 21,896.25

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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.