Home / 22,259.88-30,715.62-13,305.48

Finding the Fourth Proportional to 22,259.88, 30,715.62 and 13,305.48

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Solution

The fourth proportional to 22,259.88, 30,715.62 and 13,305.48 is: 18,359.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,259.88 : 30,715.62 = 13,305.48 : x
  2. Step 2: Convert to fraction form
    22,259.88/30,715.62 = 13,305.48/x
  3. Step 3: Cross multiply
    22,259.88x = 30,715.62 × 13,305.48
  4. Step 4: Simplify right side
    22,259.88x = 408,686,067.60
  5. Step 5: Solve for x
    x = 408,686,067.60/22,259.88
  6. Step 6: Final answer
    x = 18,359.76

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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.