Home / 21,226.76-29,293.11-13,273.60

Finding the Fourth Proportional to 21,226.76, 29,293.11 and 13,273.60

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Solution

The fourth proportional to 21,226.76, 29,293.11 and 13,273.60 is: 18,317.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,226.76 : 29,293.11 = 13,273.60 : x
  2. Step 2: Convert to fraction form
    21,226.76/29,293.11 = 13,273.60/x
  3. Step 3: Cross multiply
    21,226.76x = 29,293.11 × 13,273.60
  4. Step 4: Simplify right side
    21,226.76x = 388,825,024.90
  5. Step 5: Solve for x
    x = 388,825,024.90/21,226.76
  6. Step 6: Final answer
    x = 18,317.68

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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.