Home / 20,996.20-31,457.82-17,528.68

Finding the Fourth Proportional to 20,996.20, 31,457.82 and 17,528.68

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Solution

The fourth proportional to 20,996.20, 31,457.82 and 17,528.68 is: 26,262.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996.20 : 31,457.82 = 17,528.68 : x
  2. Step 2: Convert to fraction form
    20,996.20/31,457.82 = 17,528.68/x
  3. Step 3: Cross multiply
    20,996.20x = 31,457.82 × 17,528.68
  4. Step 4: Simplify right side
    20,996.20x = 551,414,060.28
  5. Step 5: Solve for x
    x = 551,414,060.28/20,996.20
  6. Step 6: Final answer
    x = 26,262.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.