Home / 27,888.72-41,832.60-7,111.92

Finding the Fourth Proportional to 27,888.72, 41,832.60 and 7,111.92

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Solution

The fourth proportional to 27,888.72, 41,832.60 and 7,111.92 is: 10,667.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,888.72 : 41,832.60 = 7,111.92 : x
  2. Step 2: Convert to fraction form
    27,888.72/41,832.60 = 7,111.92/x
  3. Step 3: Cross multiply
    27,888.72x = 41,832.60 × 7,111.92
  4. Step 4: Simplify right side
    27,888.72x = 297,510,104.59
  5. Step 5: Solve for x
    x = 297,510,104.59/27,888.72
  6. Step 6: Final answer
    x = 10,667.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.