Home / 20,373.36-30,539.28-11,475.60

Finding the Fourth Proportional to 20,373.36, 30,539.28 and 11,475.60

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Solution

The fourth proportional to 20,373.36, 30,539.28 and 11,475.60 is: 17,201.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373.36 : 30,539.28 = 11,475.60 : x
  2. Step 2: Convert to fraction form
    20,373.36/30,539.28 = 11,475.60/x
  3. Step 3: Cross multiply
    20,373.36x = 30,539.28 × 11,475.60
  4. Step 4: Simplify right side
    20,373.36x = 350,456,561.57
  5. Step 5: Solve for x
    x = 350,456,561.57/20,373.36
  6. Step 6: Final answer
    x = 17,201.71

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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.