Home / 35,490.20-48,982.11-21,343.04

Finding the Fourth Proportional to 35,490.20, 48,982.11 and 21,343.04

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Solution

The fourth proportional to 35,490.20, 48,982.11 and 21,343.04 is: 29,456.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,490.20 : 48,982.11 = 21,343.04 : x
  2. Step 2: Convert to fraction form
    35,490.20/48,982.11 = 21,343.04/x
  3. Step 3: Cross multiply
    35,490.20x = 48,982.11 × 21,343.04
  4. Step 4: Simplify right side
    35,490.20x = 1,045,426,991.75
  5. Step 5: Solve for x
    x = 1,045,426,991.75/35,490.20
  6. Step 6: Final answer
    x = 29,456.78

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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.