Home / 27,645.28-41,455.72-7,919.36

Finding the Fourth Proportional to 27,645.28, 41,455.72 and 7,919.36

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Solution

The fourth proportional to 27,645.28, 41,455.72 and 7,919.36 is: 11,875.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,645.28 : 41,455.72 = 7,919.36 : x
  2. Step 2: Convert to fraction form
    27,645.28/41,455.72 = 7,919.36/x
  3. Step 3: Cross multiply
    27,645.28x = 41,455.72 × 7,919.36
  4. Step 4: Simplify right side
    27,645.28x = 328,302,770.74
  5. Step 5: Solve for x
    x = 328,302,770.74/27,645.28
  6. Step 6: Final answer
    x = 11,875.55

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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.