Home / 21,036.20-29,028.62-11,604.82

Finding the Fourth Proportional to 21,036.20, 29,028.62 and 11,604.82

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Solution

The fourth proportional to 21,036.20, 29,028.62 and 11,604.82 is: 16,013.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,036.20 : 29,028.62 = 11,604.82 : x
  2. Step 2: Convert to fraction form
    21,036.20/29,028.62 = 11,604.82/x
  3. Step 3: Cross multiply
    21,036.20x = 29,028.62 × 11,604.82
  4. Step 4: Simplify right side
    21,036.20x = 336,871,909.95
  5. Step 5: Solve for x
    x = 336,871,909.95/21,036.20
  6. Step 6: Final answer
    x = 16,013.91

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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.