Home / 20,996.48-28,948.24-17,205.68

Finding the Fourth Proportional to 20,996.48, 28,948.24 and 17,205.68

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Solution

The fourth proportional to 20,996.48, 28,948.24 and 17,205.68 is: 23,721.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996.48 : 28,948.24 = 17,205.68 : x
  2. Step 2: Convert to fraction form
    20,996.48/28,948.24 = 17,205.68/x
  3. Step 3: Cross multiply
    20,996.48x = 28,948.24 × 17,205.68
  4. Step 4: Simplify right side
    20,996.48x = 498,074,154.00
  5. Step 5: Solve for x
    x = 498,074,154.00/20,996.48
  6. Step 6: Final answer
    x = 23,721.79

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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.