Home / 21,426.57-29,567.03-11,993.85

Finding the Fourth Proportional to 21,426.57, 29,567.03 and 11,993.85

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Solution

The fourth proportional to 21,426.57, 29,567.03 and 11,993.85 is: 16,550.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.57 : 29,567.03 = 11,993.85 : x
  2. Step 2: Convert to fraction form
    21,426.57/29,567.03 = 11,993.85/x
  3. Step 3: Cross multiply
    21,426.57x = 29,567.03 × 11,993.85
  4. Step 4: Simplify right side
    21,426.57x = 354,622,462.80
  5. Step 5: Solve for x
    x = 354,622,462.80/21,426.57
  6. Step 6: Final answer
    x = 16,550.59

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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.