Home / 21,269.75-29,352.96-11,710.36

Finding the Fourth Proportional to 21,269.75, 29,352.96 and 11,710.36

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Solution

The fourth proportional to 21,269.75, 29,352.96 and 11,710.36 is: 16,160.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.75 : 29,352.96 = 11,710.36 : x
  2. Step 2: Convert to fraction form
    21,269.75/29,352.96 = 11,710.36/x
  3. Step 3: Cross multiply
    21,269.75x = 29,352.96 × 11,710.36
  4. Step 4: Simplify right side
    21,269.75x = 343,733,691.14
  5. Step 5: Solve for x
    x = 343,733,691.14/21,269.75
  6. Step 6: Final answer
    x = 16,160.68

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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.