Home / 20,135.23-30,202.86-7,652.32

Finding the Fourth Proportional to 20,135.23, 30,202.86 and 7,652.32

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Solution

The fourth proportional to 20,135.23, 30,202.86 and 7,652.32 is: 11,478.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,135.23 : 30,202.86 = 7,652.32 : x
  2. Step 2: Convert to fraction form
    20,135.23/30,202.86 = 7,652.32/x
  3. Step 3: Cross multiply
    20,135.23x = 30,202.86 × 7,652.32
  4. Step 4: Simplify right side
    20,135.23x = 231,121,902.82
  5. Step 5: Solve for x
    x = 231,121,902.82/20,135.23
  6. Step 6: Final answer
    x = 11,478.48

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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.