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Finding the Fourth Proportional to 27,936, 38,552.76 and 15,360.48

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Solution

The fourth proportional to 27,936, 38,552.76 and 15,360.48 is: 21,198.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,936 : 38,552.76 = 15,360.48 : x
  2. Step 2: Convert to fraction form
    27,936/38,552.76 = 15,360.48/x
  3. Step 3: Cross multiply
    27,936x = 38,552.76 × 15,360.48
  4. Step 4: Simplify right side
    27,936x = 592,188,898.92
  5. Step 5: Solve for x
    x = 592,188,898.92/27,936
  6. Step 6: Final answer
    x = 21,198.06

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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.