Home / 21,228.24-29,294.76-11,796.60

Finding the Fourth Proportional to 21,228.24, 29,294.76 and 11,796.60

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Solution

The fourth proportional to 21,228.24, 29,294.76 and 11,796.60 is: 16,279.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,228.24 : 29,294.76 = 11,796.60 : x
  2. Step 2: Convert to fraction form
    21,228.24/29,294.76 = 11,796.60/x
  3. Step 3: Cross multiply
    21,228.24x = 29,294.76 × 11,796.60
  4. Step 4: Simplify right side
    21,228.24x = 345,578,565.82
  5. Step 5: Solve for x
    x = 345,578,565.82/21,228.24
  6. Step 6: Final answer
    x = 16,279.19

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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.