Home / 20,583.45-30,888.17-10,729.65

Finding the Fourth Proportional to 20,583.45, 30,888.17 and 10,729.65

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Solution

The fourth proportional to 20,583.45, 30,888.17 and 10,729.65 is: 16,101.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583.45 : 30,888.17 = 10,729.65 : x
  2. Step 2: Convert to fraction form
    20,583.45/30,888.17 = 10,729.65/x
  3. Step 3: Cross multiply
    20,583.45x = 30,888.17 × 10,729.65
  4. Step 4: Simplify right side
    20,583.45x = 331,419,199.59
  5. Step 5: Solve for x
    x = 331,419,199.59/20,583.45
  6. Step 6: Final answer
    x = 16,101.25

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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.