Home / 27,383.08-37,776.42-21,720.04

Finding the Fourth Proportional to 27,383.08, 37,776.42 and 21,720.04

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Solution

The fourth proportional to 27,383.08, 37,776.42 and 21,720.04 is: 29,963.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,383.08 : 37,776.42 = 21,720.04 : x
  2. Step 2: Convert to fraction form
    27,383.08/37,776.42 = 21,720.04/x
  3. Step 3: Cross multiply
    27,383.08x = 37,776.42 × 21,720.04
  4. Step 4: Simplify right side
    27,383.08x = 820,505,353.46
  5. Step 5: Solve for x
    x = 820,505,353.46/27,383.08
  6. Step 6: Final answer
    x = 29,963.95

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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.