Home / 27,848.96-38,431.12-15,749.28

Finding the Fourth Proportional to 27,848.96, 38,431.12 and 15,749.28

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Solution

The fourth proportional to 27,848.96, 38,431.12 and 15,749.28 is: 21,733.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,848.96 : 38,431.12 = 15,749.28 : x
  2. Step 2: Convert to fraction form
    27,848.96/38,431.12 = 15,749.28/x
  3. Step 3: Cross multiply
    27,848.96x = 38,431.12 × 15,749.28
  4. Step 4: Simplify right side
    27,848.96x = 605,262,469.59
  5. Step 5: Solve for x
    x = 605,262,469.59/27,848.96
  6. Step 6: Final answer
    x = 21,733.75

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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.