Home / 27,996.68-38,628.70-15,894.47

Finding the Fourth Proportional to 27,996.68, 38,628.70 and 15,894.47

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Solution

The fourth proportional to 27,996.68, 38,628.70 and 15,894.47 is: 21,930.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,996.68 : 38,628.70 = 15,894.47 : x
  2. Step 2: Convert to fraction form
    27,996.68/38,628.70 = 15,894.47/x
  3. Step 3: Cross multiply
    27,996.68x = 38,628.70 × 15,894.47
  4. Step 4: Simplify right side
    27,996.68x = 613,982,770.12
  5. Step 5: Solve for x
    x = 613,982,770.12/27,996.68
  6. Step 6: Final answer
    x = 21,930.55

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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.