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Finding the Fourth Proportional to 35,857.80, 49,483.53 and 19,942.20

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Solution

The fourth proportional to 35,857.80, 49,483.53 and 19,942.20 is: 27,520.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,857.80 : 49,483.53 = 19,942.20 : x
  2. Step 2: Convert to fraction form
    35,857.80/49,483.53 = 19,942.20/x
  3. Step 3: Cross multiply
    35,857.80x = 49,483.53 × 19,942.20
  4. Step 4: Simplify right side
    35,857.80x = 986,810,451.97
  5. Step 5: Solve for x
    x = 986,810,451.97/35,857.80
  6. Step 6: Final answer
    x = 27,520.11

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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.