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Finding the Fourth Proportional to 27,382.08, 37,775.04 and 21,719.04

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Solution

The fourth proportional to 27,382.08, 37,775.04 and 21,719.04 is: 29,962.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,382.08 : 37,775.04 = 21,719.04 : x
  2. Step 2: Convert to fraction form
    27,382.08/37,775.04 = 21,719.04/x
  3. Step 3: Cross multiply
    27,382.08x = 37,775.04 × 21,719.04
  4. Step 4: Simplify right side
    27,382.08x = 820,437,604.76
  5. Step 5: Solve for x
    x = 820,437,604.76/27,382.08
  6. Step 6: Final answer
    x = 29,962.57

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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.