Home / 21,276.96-29,363.76-11,844.92

Finding the Fourth Proportional to 21,276.96, 29,363.76 and 11,844.92

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Solution

The fourth proportional to 21,276.96, 29,363.76 and 11,844.92 is: 16,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.96 : 29,363.76 = 11,844.92 : x
  2. Step 2: Convert to fraction form
    21,276.96/29,363.76 = 11,844.92/x
  3. Step 3: Cross multiply
    21,276.96x = 29,363.76 × 11,844.92
  4. Step 4: Simplify right side
    21,276.96x = 347,811,241.28
  5. Step 5: Solve for x
    x = 347,811,241.28/21,276.96
  6. Step 6: Final answer
    x = 16,346.85

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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.