Home / 20,608.55-30,902.48-10,079.36

Finding the Fourth Proportional to 20,608.55, 30,902.48 and 10,079.36

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Solution

The fourth proportional to 20,608.55, 30,902.48 and 10,079.36 is: 15,113.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.55 : 30,902.48 = 10,079.36 : x
  2. Step 2: Convert to fraction form
    20,608.55/30,902.48 = 10,079.36/x
  3. Step 3: Cross multiply
    20,608.55x = 30,902.48 × 10,079.36
  4. Step 4: Simplify right side
    20,608.55x = 311,477,170.42
  5. Step 5: Solve for x
    x = 311,477,170.42/20,608.55
  6. Step 6: Final answer
    x = 15,113.98

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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.