Home / 21,296.22-31,922.73-10,186.62

Finding the Fourth Proportional to 21,296.22, 31,922.73 and 10,186.62

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Solution

The fourth proportional to 21,296.22, 31,922.73 and 10,186.62 is: 15,269.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,296.22 : 31,922.73 = 10,186.62 : x
  2. Step 2: Convert to fraction form
    21,296.22/31,922.73 = 10,186.62/x
  3. Step 3: Cross multiply
    21,296.22x = 31,922.73 × 10,186.62
  4. Step 4: Simplify right side
    21,296.22x = 325,184,719.87
  5. Step 5: Solve for x
    x = 325,184,719.87/21,296.22
  6. Step 6: Final answer
    x = 15,269.60

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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.