Home / 20,056.64-30,091.53-8,220.38

Finding the Fourth Proportional to 20,056.64, 30,091.53 and 8,220.38

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Solution

The fourth proportional to 20,056.64, 30,091.53 and 8,220.38 is: 12,333.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,056.64 : 30,091.53 = 8,220.38 : x
  2. Step 2: Convert to fraction form
    20,056.64/30,091.53 = 8,220.38/x
  3. Step 3: Cross multiply
    20,056.64x = 30,091.53 × 8,220.38
  4. Step 4: Simplify right side
    20,056.64x = 247,363,811.38
  5. Step 5: Solve for x
    x = 247,363,811.38/20,056.64
  6. Step 6: Final answer
    x = 12,333.26

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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.