Home / 27,815.56-38,383.86-15,238.12

Finding the Fourth Proportional to 27,815.56, 38,383.86 and 15,238.12

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Solution

The fourth proportional to 27,815.56, 38,383.86 and 15,238.12 is: 21,027.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,815.56 : 38,383.86 = 15,238.12 : x
  2. Step 2: Convert to fraction form
    27,815.56/38,383.86 = 15,238.12/x
  3. Step 3: Cross multiply
    27,815.56x = 38,383.86 × 15,238.12
  4. Step 4: Simplify right side
    27,815.56x = 584,897,864.74
  5. Step 5: Solve for x
    x = 584,897,864.74/27,815.56
  6. Step 6: Final answer
    x = 21,027.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.