Home / 20,609.69-30,887.19-11,225.63

Finding the Fourth Proportional to 20,609.69, 30,887.19 and 11,225.63

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Solution

The fourth proportional to 20,609.69, 30,887.19 and 11,225.63 is: 16,823.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609.69 : 30,887.19 = 11,225.63 : x
  2. Step 2: Convert to fraction form
    20,609.69/30,887.19 = 11,225.63/x
  3. Step 3: Cross multiply
    20,609.69x = 30,887.19 × 11,225.63
  4. Step 4: Simplify right side
    20,609.69x = 346,728,243.90
  5. Step 5: Solve for x
    x = 346,728,243.90/20,609.69
  6. Step 6: Final answer
    x = 16,823.56

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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.