Home / 35,769.12-49,354.20-21,622.80

Finding the Fourth Proportional to 35,769.12, 49,354.20 and 21,622.80

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Solution

The fourth proportional to 35,769.12, 49,354.20 and 21,622.80 is: 29,835.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,769.12 : 49,354.20 = 21,622.80 : x
  2. Step 2: Convert to fraction form
    35,769.12/49,354.20 = 21,622.80/x
  3. Step 3: Cross multiply
    35,769.12x = 49,354.20 × 21,622.80
  4. Step 4: Simplify right side
    35,769.12x = 1,067,175,995.76
  5. Step 5: Solve for x
    x = 1,067,175,995.76/35,769.12
  6. Step 6: Final answer
    x = 29,835.12

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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.