Home / 27,846.97-38,428.36-15,747.28

Finding the Fourth Proportional to 27,846.97, 38,428.36 and 15,747.28

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Solution

The fourth proportional to 27,846.97, 38,428.36 and 15,747.28 is: 21,730.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,846.97 : 38,428.36 = 15,747.28 : x
  2. Step 2: Convert to fraction form
    27,846.97/38,428.36 = 15,747.28/x
  3. Step 3: Cross multiply
    27,846.97x = 38,428.36 × 15,747.28
  4. Step 4: Simplify right side
    27,846.97x = 605,142,009.42
  5. Step 5: Solve for x
    x = 605,142,009.42/27,846.97
  6. Step 6: Final answer
    x = 21,730.98

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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.