Home / 21,991.38-32,996.42-10,898.28

Finding the Fourth Proportional to 21,991.38, 32,996.42 and 10,898.28

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Solution

The fourth proportional to 21,991.38, 32,996.42 and 10,898.28 is: 16,352.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,991.38 : 32,996.42 = 10,898.28 : x
  2. Step 2: Convert to fraction form
    21,991.38/32,996.42 = 10,898.28/x
  3. Step 3: Cross multiply
    21,991.38x = 32,996.42 × 10,898.28
  4. Step 4: Simplify right side
    21,991.38x = 359,604,169.67
  5. Step 5: Solve for x
    x = 359,604,169.67/21,991.38
  6. Step 6: Final answer
    x = 16,352.05

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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.