Home / 20,071.28-27,693.60-12,110.48

Finding the Fourth Proportional to 20,071.28, 27,693.60 and 12,110.48

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Solution

The fourth proportional to 20,071.28, 27,693.60 and 12,110.48 is: 16,709.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071.28 : 27,693.60 = 12,110.48 : x
  2. Step 2: Convert to fraction form
    20,071.28/27,693.60 = 12,110.48/x
  3. Step 3: Cross multiply
    20,071.28x = 27,693.60 × 12,110.48
  4. Step 4: Simplify right side
    20,071.28x = 335,382,788.93
  5. Step 5: Solve for x
    x = 335,382,788.93/20,071.28
  6. Step 6: Final answer
    x = 16,709.59

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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.