Home / 20,929.08-28,882.14-11,497.65

Finding the Fourth Proportional to 20,929.08, 28,882.14 and 11,497.65

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Solution

The fourth proportional to 20,929.08, 28,882.14 and 11,497.65 is: 15,866.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,929.08 : 28,882.14 = 11,497.65 : x
  2. Step 2: Convert to fraction form
    20,929.08/28,882.14 = 11,497.65/x
  3. Step 3: Cross multiply
    20,929.08x = 28,882.14 × 11,497.65
  4. Step 4: Simplify right side
    20,929.08x = 332,076,736.97
  5. Step 5: Solve for x
    x = 332,076,736.97/20,929.08
  6. Step 6: Final answer
    x = 15,866.76

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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.