Home / 20,329.29-30,504.87-19,388.88

Finding the Fourth Proportional to 20,329.29, 30,504.87 and 19,388.88

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Solution

The fourth proportional to 20,329.29, 30,504.87 and 19,388.88 is: 29,093.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,329.29 : 30,504.87 = 19,388.88 : x
  2. Step 2: Convert to fraction form
    20,329.29/30,504.87 = 19,388.88/x
  3. Step 3: Cross multiply
    20,329.29x = 30,504.87 × 19,388.88
  4. Step 4: Simplify right side
    20,329.29x = 591,455,263.85
  5. Step 5: Solve for x
    x = 591,455,263.85/20,329.29
  6. Step 6: Final answer
    x = 29,093.75

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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.