Home / 21,249.05-29,322.44-12,295.91

Finding the Fourth Proportional to 21,249.05, 29,322.44 and 12,295.91

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Solution

The fourth proportional to 21,249.05, 29,322.44 and 12,295.91 is: 16,967.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249.05 : 29,322.44 = 12,295.91 : x
  2. Step 2: Convert to fraction form
    21,249.05/29,322.44 = 12,295.91/x
  3. Step 3: Cross multiply
    21,249.05x = 29,322.44 × 12,295.91
  4. Step 4: Simplify right side
    21,249.05x = 360,546,021.74
  5. Step 5: Solve for x
    x = 360,546,021.74/21,249.05
  6. Step 6: Final answer
    x = 16,967.63

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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.