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Finding the Fourth Proportional to 27,819.68, 38,391.04 and 15,244.48

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Solution

The fourth proportional to 27,819.68, 38,391.04 and 15,244.48 is: 21,037.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,819.68 : 38,391.04 = 15,244.48 : x
  2. Step 2: Convert to fraction form
    27,819.68/38,391.04 = 15,244.48/x
  3. Step 3: Cross multiply
    27,819.68x = 38,391.04 × 15,244.48
  4. Step 4: Simplify right side
    27,819.68x = 585,251,441.46
  5. Step 5: Solve for x
    x = 585,251,441.46/27,819.68
  6. Step 6: Final answer
    x = 21,037.32

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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.