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Finding the Fourth Proportional to 27,251.92, 37,611.01 and 15,315

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Solution

The fourth proportional to 27,251.92, 37,611.01 and 15,315 is: 21,136.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,251.92 : 37,611.01 = 15,315 : x
  2. Step 2: Convert to fraction form
    27,251.92/37,611.01 = 15,315/x
  3. Step 3: Cross multiply
    27,251.92x = 37,611.01 × 15,315
  4. Step 4: Simplify right side
    27,251.92x = 576,012,618.15
  5. Step 5: Solve for x
    x = 576,012,618.15/27,251.92
  6. Step 6: Final answer
    x = 21,136.59

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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.