Home / 20,150.47-27,805.53-11,651.23

Finding the Fourth Proportional to 20,150.47, 27,805.53 and 11,651.23

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Solution

The fourth proportional to 20,150.47, 27,805.53 and 11,651.23 is: 16,077.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.47 : 27,805.53 = 11,651.23 : x
  2. Step 2: Convert to fraction form
    20,150.47/27,805.53 = 11,651.23/x
  3. Step 3: Cross multiply
    20,150.47x = 27,805.53 × 11,651.23
  4. Step 4: Simplify right side
    20,150.47x = 323,968,625.30
  5. Step 5: Solve for x
    x = 323,968,625.30/20,150.47
  6. Step 6: Final answer
    x = 16,077.47

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Double scale
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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.