Home / 20,930.02-28,882.65-11,498.02

Finding the Fourth Proportional to 20,930.02, 28,882.65 and 11,498.02

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Solution

The fourth proportional to 20,930.02, 28,882.65 and 11,498.02 is: 15,866.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,930.02 : 28,882.65 = 11,498.02 : x
  2. Step 2: Convert to fraction form
    20,930.02/28,882.65 = 11,498.02/x
  3. Step 3: Cross multiply
    20,930.02x = 28,882.65 × 11,498.02
  4. Step 4: Simplify right side
    20,930.02x = 332,093,287.35
  5. Step 5: Solve for x
    x = 332,093,287.35/20,930.02
  6. Step 6: Final answer
    x = 15,866.84

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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.