Home / 22,170.24-30,552.72-15,871.68

Finding the Fourth Proportional to 22,170.24, 30,552.72 and 15,871.68

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Solution

The fourth proportional to 22,170.24, 30,552.72 and 15,871.68 is: 21,872.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,170.24 : 30,552.72 = 15,871.68 : x
  2. Step 2: Convert to fraction form
    22,170.24/30,552.72 = 15,871.68/x
  3. Step 3: Cross multiply
    22,170.24x = 30,552.72 × 15,871.68
  4. Step 4: Simplify right side
    22,170.24x = 484,922,994.97
  5. Step 5: Solve for x
    x = 484,922,994.97/22,170.24
  6. Step 6: Final answer
    x = 21,872.70

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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.