Home / 20,135.73-30,203.62-7,652.82

Finding the Fourth Proportional to 20,135.73, 30,203.62 and 7,652.82

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Solution

The fourth proportional to 20,135.73, 30,203.62 and 7,652.82 is: 11,479.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,135.73 : 30,203.62 = 7,652.82 : x
  2. Step 2: Convert to fraction form
    20,135.73/30,203.62 = 7,652.82/x
  3. Step 3: Cross multiply
    20,135.73x = 30,203.62 × 7,652.82
  4. Step 4: Simplify right side
    20,135.73x = 231,142,828.94
  5. Step 5: Solve for x
    x = 231,142,828.94/20,135.73
  6. Step 6: Final answer
    x = 11,479.24

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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.