Home / 20,190.42-30,285.36-5,197.46

Finding the Fourth Proportional to 20,190.42, 30,285.36 and 5,197.46

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Solution

The fourth proportional to 20,190.42, 30,285.36 and 5,197.46 is: 7,796.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.42 : 30,285.36 = 5,197.46 : x
  2. Step 2: Convert to fraction form
    20,190.42/30,285.36 = 5,197.46/x
  3. Step 3: Cross multiply
    20,190.42x = 30,285.36 × 5,197.46
  4. Step 4: Simplify right side
    20,190.42x = 157,406,795.76
  5. Step 5: Solve for x
    x = 157,406,795.76/20,190.42
  6. Step 6: Final answer
    x = 7,796.11

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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.