Home / 20,416.88-30,600.72-10,550.84

Finding the Fourth Proportional to 20,416.88, 30,600.72 and 10,550.84

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Solution

The fourth proportional to 20,416.88, 30,600.72 and 10,550.84 is: 15,813.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.88 : 30,600.72 = 10,550.84 : x
  2. Step 2: Convert to fraction form
    20,416.88/30,600.72 = 10,550.84/x
  3. Step 3: Cross multiply
    20,416.88x = 30,600.72 × 10,550.84
  4. Step 4: Simplify right side
    20,416.88x = 322,863,300.60
  5. Step 5: Solve for x
    x = 322,863,300.60/20,416.88
  6. Step 6: Final answer
    x = 15,813.55

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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.