Home / 20,201.55-30,040.61-19,577.85

Finding the Fourth Proportional to 20,201.55, 30,040.61 and 19,577.85

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Solution

The fourth proportional to 20,201.55, 30,040.61 and 19,577.85 is: 29,113.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.55 : 30,040.61 = 19,577.85 : x
  2. Step 2: Convert to fraction form
    20,201.55/30,040.61 = 19,577.85/x
  3. Step 3: Cross multiply
    20,201.55x = 30,040.61 × 19,577.85
  4. Step 4: Simplify right side
    20,201.55x = 588,130,458.60
  5. Step 5: Solve for x
    x = 588,130,458.60/20,201.55
  6. Step 6: Final answer
    x = 29,113.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.