Home / 21,203.94-29,259.72-11,772.30

Finding the Fourth Proportional to 21,203.94, 29,259.72 and 11,772.30

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Solution

The fourth proportional to 21,203.94, 29,259.72 and 11,772.30 is: 16,244.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203.94 : 29,259.72 = 11,772.30 : x
  2. Step 2: Convert to fraction form
    21,203.94/29,259.72 = 11,772.30/x
  3. Step 3: Cross multiply
    21,203.94x = 29,259.72 × 11,772.30
  4. Step 4: Simplify right side
    21,203.94x = 344,454,201.76
  5. Step 5: Solve for x
    x = 344,454,201.76/21,203.94
  6. Step 6: Final answer
    x = 16,244.82

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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.