Home / 21,133.92-29,163.63-11,701.89

Finding the Fourth Proportional to 21,133.92, 29,163.63 and 11,701.89

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Solution

The fourth proportional to 21,133.92, 29,163.63 and 11,701.89 is: 16,147.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,133.92 : 29,163.63 = 11,701.89 : x
  2. Step 2: Convert to fraction form
    21,133.92/29,163.63 = 11,701.89/x
  3. Step 3: Cross multiply
    21,133.92x = 29,163.63 × 11,701.89
  4. Step 4: Simplify right side
    21,133.92x = 341,269,590.26
  5. Step 5: Solve for x
    x = 341,269,590.26/21,133.92
  6. Step 6: Final answer
    x = 16,147.96

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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.