Home / 27,747.58-38,294.16-15,814.76

Finding the Fourth Proportional to 27,747.58, 38,294.16 and 15,814.76

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Solution

The fourth proportional to 27,747.58, 38,294.16 and 15,814.76 is: 21,825.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,747.58 : 38,294.16 = 15,814.76 : x
  2. Step 2: Convert to fraction form
    27,747.58/38,294.16 = 15,814.76/x
  3. Step 3: Cross multiply
    27,747.58x = 38,294.16 × 15,814.76
  4. Step 4: Simplify right side
    27,747.58x = 605,612,949.80
  5. Step 5: Solve for x
    x = 605,612,949.80/27,747.58
  6. Step 6: Final answer
    x = 21,825.79

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Half scale
Find fourth proportional to 55,495.16, 76,588.32 and 31,629.52
Double scale
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Similar ratio
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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.