Home / 20,147.08-27,802.50-11,194.12

Finding the Fourth Proportional to 20,147.08, 27,802.50 and 11,194.12

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Solution

The fourth proportional to 20,147.08, 27,802.50 and 11,194.12 is: 15,447.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.08 : 27,802.50 = 11,194.12 : x
  2. Step 2: Convert to fraction form
    20,147.08/27,802.50 = 11,194.12/x
  3. Step 3: Cross multiply
    20,147.08x = 27,802.50 × 11,194.12
  4. Step 4: Simplify right side
    20,147.08x = 311,224,521.30
  5. Step 5: Solve for x
    x = 311,224,521.30/20,147.08
  6. Step 6: Final answer
    x = 15,447.62

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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.