Home / 22,288.64-30,758.36-12,216.87

Finding the Fourth Proportional to 22,288.64, 30,758.36 and 12,216.87

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Solution

The fourth proportional to 22,288.64, 30,758.36 and 12,216.87 is: 16,859.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,288.64 : 30,758.36 = 12,216.87 : x
  2. Step 2: Convert to fraction form
    22,288.64/30,758.36 = 12,216.87/x
  3. Step 3: Cross multiply
    22,288.64x = 30,758.36 × 12,216.87
  4. Step 4: Simplify right side
    22,288.64x = 375,770,824.45
  5. Step 5: Solve for x
    x = 375,770,824.45/22,288.64
  6. Step 6: Final answer
    x = 16,859.30

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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.