Home / 21,277.53-29,363.79-11,717.84

Finding the Fourth Proportional to 21,277.53, 29,363.79 and 11,717.84

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Solution

The fourth proportional to 21,277.53, 29,363.79 and 11,717.84 is: 16,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.53 : 29,363.79 = 11,717.84 : x
  2. Step 2: Convert to fraction form
    21,277.53/29,363.79 = 11,717.84/x
  3. Step 3: Cross multiply
    21,277.53x = 29,363.79 × 11,717.84
  4. Step 4: Simplify right side
    21,277.53x = 344,080,046.19
  5. Step 5: Solve for x
    x = 344,080,046.19/21,277.53
  6. Step 6: Final answer
    x = 16,171.05

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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.