Home / 21,249.16-29,325.54-11,819.56

Finding the Fourth Proportional to 21,249.16, 29,325.54 and 11,819.56

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Solution

The fourth proportional to 21,249.16, 29,325.54 and 11,819.56 is: 16,311.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249.16 : 29,325.54 = 11,819.56 : x
  2. Step 2: Convert to fraction form
    21,249.16/29,325.54 = 11,819.56/x
  3. Step 3: Cross multiply
    21,249.16x = 29,325.54 × 11,819.56
  4. Step 4: Simplify right side
    21,249.16x = 346,614,979.56
  5. Step 5: Solve for x
    x = 346,614,979.56/21,249.16
  6. Step 6: Final answer
    x = 16,311.94

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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.