Home / 20,468.65-28,245.15-11,514.37

Finding the Fourth Proportional to 20,468.65, 28,245.15 and 11,514.37

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Solution

The fourth proportional to 20,468.65, 28,245.15 and 11,514.37 is: 15,888.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,468.65 : 28,245.15 = 11,514.37 : x
  2. Step 2: Convert to fraction form
    20,468.65/28,245.15 = 11,514.37/x
  3. Step 3: Cross multiply
    20,468.65x = 28,245.15 × 11,514.37
  4. Step 4: Simplify right side
    20,468.65x = 325,225,107.81
  5. Step 5: Solve for x
    x = 325,225,107.81/20,468.65
  6. Step 6: Final answer
    x = 15,888.94

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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.