Home / 21,627.77-29,846.40-12,067.61

Finding the Fourth Proportional to 21,627.77, 29,846.40 and 12,067.61

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Solution

The fourth proportional to 21,627.77, 29,846.40 and 12,067.61 is: 16,653.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,627.77 : 29,846.40 = 12,067.61 : x
  2. Step 2: Convert to fraction form
    21,627.77/29,846.40 = 12,067.61/x
  3. Step 3: Cross multiply
    21,627.77x = 29,846.40 × 12,067.61
  4. Step 4: Simplify right side
    21,627.77x = 360,174,715.10
  5. Step 5: Solve for x
    x = 360,174,715.10/21,627.77
  6. Step 6: Final answer
    x = 16,653.34

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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.