Home / 35,729.22-49,309.11-19,816.78

Finding the Fourth Proportional to 35,729.22, 49,309.11 and 19,816.78

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Solution

The fourth proportional to 35,729.22, 49,309.11 and 19,816.78 is: 27,348.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,729.22 : 49,309.11 = 19,816.78 : x
  2. Step 2: Convert to fraction form
    35,729.22/49,309.11 = 19,816.78/x
  3. Step 3: Cross multiply
    35,729.22x = 49,309.11 × 19,816.78
  4. Step 4: Simplify right side
    35,729.22x = 977,147,784.87
  5. Step 5: Solve for x
    x = 977,147,784.87/35,729.22
  6. Step 6: Final answer
    x = 27,348.70

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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.