Home / 21,266.79-29,347.70-11,836.23

Finding the Fourth Proportional to 21,266.79, 29,347.70 and 11,836.23

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Solution

The fourth proportional to 21,266.79, 29,347.70 and 11,836.23 is: 16,333.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,266.79 : 29,347.70 = 11,836.23 : x
  2. Step 2: Convert to fraction form
    21,266.79/29,347.70 = 11,836.23/x
  3. Step 3: Cross multiply
    21,266.79x = 29,347.70 × 11,836.23
  4. Step 4: Simplify right side
    21,266.79x = 347,366,067.99
  5. Step 5: Solve for x
    x = 347,366,067.99/21,266.79
  6. Step 6: Final answer
    x = 16,333.73

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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.