Home / 20,662.24-28,514.08-11,230.88

Finding the Fourth Proportional to 20,662.24, 28,514.08 and 11,230.88

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Solution

The fourth proportional to 20,662.24, 28,514.08 and 11,230.88 is: 15,498.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,662.24 : 28,514.08 = 11,230.88 : x
  2. Step 2: Convert to fraction form
    20,662.24/28,514.08 = 11,230.88/x
  3. Step 3: Cross multiply
    20,662.24x = 28,514.08 × 11,230.88
  4. Step 4: Simplify right side
    20,662.24x = 320,238,210.79
  5. Step 5: Solve for x
    x = 320,238,210.79/20,662.24
  6. Step 6: Final answer
    x = 15,498.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.