Home / 20,165.18-30,221.48-10,296.14

Finding the Fourth Proportional to 20,165.18, 30,221.48 and 10,296.14

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Solution

The fourth proportional to 20,165.18, 30,221.48 and 10,296.14 is: 15,430.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,165.18 : 30,221.48 = 10,296.14 : x
  2. Step 2: Convert to fraction form
    20,165.18/30,221.48 = 10,296.14/x
  3. Step 3: Cross multiply
    20,165.18x = 30,221.48 × 10,296.14
  4. Step 4: Simplify right side
    20,165.18x = 311,164,589.09
  5. Step 5: Solve for x
    x = 311,164,589.09/20,165.18
  6. Step 6: Final answer
    x = 15,430.79

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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.