Home / 20,005.12-27,607.08-11,052.64

Finding the Fourth Proportional to 20,005.12, 27,607.08 and 11,052.64

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Solution

The fourth proportional to 20,005.12, 27,607.08 and 11,052.64 is: 15,252.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005.12 : 27,607.08 = 11,052.64 : x
  2. Step 2: Convert to fraction form
    20,005.12/27,607.08 = 11,052.64/x
  3. Step 3: Cross multiply
    20,005.12x = 27,607.08 × 11,052.64
  4. Step 4: Simplify right side
    20,005.12x = 305,131,116.69
  5. Step 5: Solve for x
    x = 305,131,116.69/20,005.12
  6. Step 6: Final answer
    x = 15,252.65

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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.