Home / 21,245.32-29,326.56-18,249.16

Finding the Fourth Proportional to 21,245.32, 29,326.56 and 18,249.16

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Solution

The fourth proportional to 21,245.32, 29,326.56 and 18,249.16 is: 25,190.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,245.32 : 29,326.56 = 18,249.16 : x
  2. Step 2: Convert to fraction form
    21,245.32/29,326.56 = 18,249.16/x
  3. Step 3: Cross multiply
    21,245.32x = 29,326.56 × 18,249.16
  4. Step 4: Simplify right side
    21,245.32x = 535,185,085.69
  5. Step 5: Solve for x
    x = 535,185,085.69/21,245.32
  6. Step 6: Final answer
    x = 25,190.73

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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.