Home / 19,772.62-27,286.22-10,820.13

Finding the Fourth Proportional to 19,772.62, 27,286.22 and 10,820.13

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Solution

The fourth proportional to 19,772.62, 27,286.22 and 10,820.13 is: 14,931.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.62 : 27,286.22 = 10,820.13 : x
  2. Step 2: Convert to fraction form
    19,772.62/27,286.22 = 10,820.13/x
  3. Step 3: Cross multiply
    19,772.62x = 27,286.22 × 10,820.13
  4. Step 4: Simplify right side
    19,772.62x = 295,240,311.18
  5. Step 5: Solve for x
    x = 295,240,311.18/19,772.62
  6. Step 6: Final answer
    x = 14,931.77

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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.