Home / 20,418.88-30,603.72-10,552.84

Finding the Fourth Proportional to 20,418.88, 30,603.72 and 10,552.84

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Solution

The fourth proportional to 20,418.88, 30,603.72 and 10,552.84 is: 15,816.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,418.88 : 30,603.72 = 10,552.84 : x
  2. Step 2: Convert to fraction form
    20,418.88/30,603.72 = 10,552.84/x
  3. Step 3: Cross multiply
    20,418.88x = 30,603.72 × 10,552.84
  4. Step 4: Simplify right side
    20,418.88x = 322,956,160.56
  5. Step 5: Solve for x
    x = 322,956,160.56/20,418.88
  6. Step 6: Final answer
    x = 15,816.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.