Home / 20,022.12-27,628.68-11,521.98

Finding the Fourth Proportional to 20,022.12, 27,628.68 and 11,521.98

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Solution

The fourth proportional to 20,022.12, 27,628.68 and 11,521.98 is: 15,899.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,022.12 : 27,628.68 = 11,521.98 : x
  2. Step 2: Convert to fraction form
    20,022.12/27,628.68 = 11,521.98/x
  3. Step 3: Cross multiply
    20,022.12x = 27,628.68 × 11,521.98
  4. Step 4: Simplify right side
    20,022.12x = 318,337,098.39
  5. Step 5: Solve for x
    x = 318,337,098.39/20,022.12
  6. Step 6: Final answer
    x = 15,899.27

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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.