Home / 27,847.49-38,429.58-15,910.79

Finding the Fourth Proportional to 27,847.49, 38,429.58 and 15,910.79

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Solution

The fourth proportional to 27,847.49, 38,429.58 and 15,910.79 is: 21,956.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.49 : 38,429.58 = 15,910.79 : x
  2. Step 2: Convert to fraction form
    27,847.49/38,429.58 = 15,910.79/x
  3. Step 3: Cross multiply
    27,847.49x = 38,429.58 × 15,910.79
  4. Step 4: Simplify right side
    27,847.49x = 611,444,785.02
  5. Step 5: Solve for x
    x = 611,444,785.02/27,847.49
  6. Step 6: Final answer
    x = 21,956.91

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Double scale
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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.