Home / 27,660.69-38,170.44-15,722.71

Finding the Fourth Proportional to 27,660.69, 38,170.44 and 15,722.71

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Solution

The fourth proportional to 27,660.69, 38,170.44 and 15,722.71 is: 21,696.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,660.69 : 38,170.44 = 15,722.71 : x
  2. Step 2: Convert to fraction form
    27,660.69/38,170.44 = 15,722.71/x
  3. Step 3: Cross multiply
    27,660.69x = 38,170.44 × 15,722.71
  4. Step 4: Simplify right side
    27,660.69x = 600,142,663.27
  5. Step 5: Solve for x
    x = 600,142,663.27/27,660.69
  6. Step 6: Final answer
    x = 21,696.59

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Half scale
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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.