Home / 27,886.12-41,828.64-11,245.78

Finding the Fourth Proportional to 27,886.12, 41,828.64 and 11,245.78

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Solution

The fourth proportional to 27,886.12, 41,828.64 and 11,245.78 is: 16,868.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,886.12 : 41,828.64 = 11,245.78 : x
  2. Step 2: Convert to fraction form
    27,886.12/41,828.64 = 11,245.78/x
  3. Step 3: Cross multiply
    27,886.12x = 41,828.64 × 11,245.78
  4. Step 4: Simplify right side
    27,886.12x = 470,395,683.14
  5. Step 5: Solve for x
    x = 470,395,683.14/27,886.12
  6. Step 6: Final answer
    x = 16,868.45

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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.