Home / 27,156.96-37,425.80-21,179.16

Finding the Fourth Proportional to 27,156.96, 37,425.80 and 21,179.16

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Solution

The fourth proportional to 27,156.96, 37,425.80 and 21,179.16 is: 29,187.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,156.96 : 37,425.80 = 21,179.16 : x
  2. Step 2: Convert to fraction form
    27,156.96/37,425.80 = 21,179.16/x
  3. Step 3: Cross multiply
    27,156.96x = 37,425.80 × 21,179.16
  4. Step 4: Simplify right side
    27,156.96x = 792,647,006.33
  5. Step 5: Solve for x
    x = 792,647,006.33/27,156.96
  6. Step 6: Final answer
    x = 29,187.62

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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.