Home / 20,074.96-30,056.82-15,129.64

Finding the Fourth Proportional to 20,074.96, 30,056.82 and 15,129.64

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Solution

The fourth proportional to 20,074.96, 30,056.82 and 15,129.64 is: 22,652.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.96 : 30,056.82 = 15,129.64 : x
  2. Step 2: Convert to fraction form
    20,074.96/30,056.82 = 15,129.64/x
  3. Step 3: Cross multiply
    20,074.96x = 30,056.82 × 15,129.64
  4. Step 4: Simplify right side
    20,074.96x = 454,748,866.14
  5. Step 5: Solve for x
    x = 454,748,866.14/20,074.96
  6. Step 6: Final answer
    x = 22,652.54

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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.