Home / 21,205.28-29,262.40-11,773.28

Finding the Fourth Proportional to 21,205.28, 29,262.40 and 11,773.28

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Solution

The fourth proportional to 21,205.28, 29,262.40 and 11,773.28 is: 16,246.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205.28 : 29,262.40 = 11,773.28 : x
  2. Step 2: Convert to fraction form
    21,205.28/29,262.40 = 11,773.28/x
  3. Step 3: Cross multiply
    21,205.28x = 29,262.40 × 11,773.28
  4. Step 4: Simplify right side
    21,205.28x = 344,514,428.67
  5. Step 5: Solve for x
    x = 344,514,428.67/21,205.28
  6. Step 6: Final answer
    x = 16,246.63

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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.