Home / 21,772.13-30,045.56-11,836.13

Finding the Fourth Proportional to 21,772.13, 30,045.56 and 11,836.13

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Solution

The fourth proportional to 21,772.13, 30,045.56 and 11,836.13 is: 16,333.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,772.13 : 30,045.56 = 11,836.13 : x
  2. Step 2: Convert to fraction form
    21,772.13/30,045.56 = 11,836.13/x
  3. Step 3: Cross multiply
    21,772.13x = 30,045.56 × 11,836.13
  4. Step 4: Simplify right side
    21,772.13x = 355,622,944.67
  5. Step 5: Solve for x
    x = 355,622,944.67/21,772.13
  6. Step 6: Final answer
    x = 16,333.86

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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.