Home / 21,279.24-29,365.32-11,850.02

Finding the Fourth Proportional to 21,279.24, 29,365.32 and 11,850.02

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Solution

The fourth proportional to 21,279.24, 29,365.32 and 11,850.02 is: 16,353.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,279.24 : 29,365.32 = 11,850.02 : x
  2. Step 2: Convert to fraction form
    21,279.24/29,365.32 = 11,850.02/x
  3. Step 3: Cross multiply
    21,279.24x = 29,365.32 × 11,850.02
  4. Step 4: Simplify right side
    21,279.24x = 347,979,629.31
  5. Step 5: Solve for x
    x = 347,979,629.31/21,279.24
  6. Step 6: Final answer
    x = 16,353.01

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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.