Home / 21,230.48-29,294.52-11,797.76

Finding the Fourth Proportional to 21,230.48, 29,294.52 and 11,797.76

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Solution

The fourth proportional to 21,230.48, 29,294.52 and 11,797.76 is: 16,278.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,230.48 : 29,294.52 = 11,797.76 : x
  2. Step 2: Convert to fraction form
    21,230.48/29,294.52 = 11,797.76/x
  3. Step 3: Cross multiply
    21,230.48x = 29,294.52 × 11,797.76
  4. Step 4: Simplify right side
    21,230.48x = 345,609,716.28
  5. Step 5: Solve for x
    x = 345,609,716.28/21,230.48
  6. Step 6: Final answer
    x = 16,278.94

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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.