Home / 20,147.68-27,802.16-11,194.08

Finding the Fourth Proportional to 20,147.68, 27,802.16 and 11,194.08

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Solution

The fourth proportional to 20,147.68, 27,802.16 and 11,194.08 is: 15,446.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.68 : 27,802.16 = 11,194.08 : x
  2. Step 2: Convert to fraction form
    20,147.68/27,802.16 = 11,194.08/x
  3. Step 3: Cross multiply
    20,147.68x = 27,802.16 × 11,194.08
  4. Step 4: Simplify right side
    20,147.68x = 311,219,603.21
  5. Step 5: Solve for x
    x = 311,219,603.21/20,147.68
  6. Step 6: Final answer
    x = 15,446.92

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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.