Home / 20,514.30-30,749.92-11,618.50

Finding the Fourth Proportional to 20,514.30, 30,749.92 and 11,618.50

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Solution

The fourth proportional to 20,514.30, 30,749.92 and 11,618.50 is: 17,415.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.30 : 30,749.92 = 11,618.50 : x
  2. Step 2: Convert to fraction form
    20,514.30/30,749.92 = 11,618.50/x
  3. Step 3: Cross multiply
    20,514.30x = 30,749.92 × 11,618.50
  4. Step 4: Simplify right side
    20,514.30x = 357,267,945.52
  5. Step 5: Solve for x
    x = 357,267,945.52/20,514.30
  6. Step 6: Final answer
    x = 17,415.56

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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.