Home / 27,872.73-38,464.11-15,125.94

Finding the Fourth Proportional to 27,872.73, 38,464.11 and 15,125.94

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Solution

The fourth proportional to 27,872.73, 38,464.11 and 15,125.94 is: 20,873.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,872.73 : 38,464.11 = 15,125.94 : x
  2. Step 2: Convert to fraction form
    27,872.73/38,464.11 = 15,125.94/x
  3. Step 3: Cross multiply
    27,872.73x = 38,464.11 × 15,125.94
  4. Step 4: Simplify right side
    27,872.73x = 581,805,820.01
  5. Step 5: Solve for x
    x = 581,805,820.01/27,872.73
  6. Step 6: Final answer
    x = 20,873.66

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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.