Home / 20,147.55-27,795.66-11,648.12

Finding the Fourth Proportional to 20,147.55, 27,795.66 and 11,648.12

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Solution

The fourth proportional to 20,147.55, 27,795.66 and 11,648.12 is: 16,069.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.55 : 27,795.66 = 11,648.12 : x
  2. Step 2: Convert to fraction form
    20,147.55/27,795.66 = 11,648.12/x
  3. Step 3: Cross multiply
    20,147.55x = 27,795.66 × 11,648.12
  4. Step 4: Simplify right side
    20,147.55x = 323,767,044.18
  5. Step 5: Solve for x
    x = 323,767,044.18/20,147.55
  6. Step 6: Final answer
    x = 16,069.80

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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.