Home / 20,151.56-27,809.48-11,655.60

Finding the Fourth Proportional to 20,151.56, 27,809.48 and 11,655.60

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Solution

The fourth proportional to 20,151.56, 27,809.48 and 11,655.60 is: 16,084.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.56 : 27,809.48 = 11,655.60 : x
  2. Step 2: Convert to fraction form
    20,151.56/27,809.48 = 11,655.60/x
  3. Step 3: Cross multiply
    20,151.56x = 27,809.48 × 11,655.60
  4. Step 4: Simplify right side
    20,151.56x = 324,136,175.09
  5. Step 5: Solve for x
    x = 324,136,175.09/20,151.56
  6. Step 6: Final answer
    x = 16,084.92

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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.