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Finding the Fourth Proportional to 35,650.40, 49,192.80 and 19,731.20

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Solution

The fourth proportional to 35,650.40, 49,192.80 and 19,731.20 is: 27,226.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,650.40 : 49,192.80 = 19,731.20 : x
  2. Step 2: Convert to fraction form
    35,650.40/49,192.80 = 19,731.20/x
  3. Step 3: Cross multiply
    35,650.40x = 49,192.80 × 19,731.20
  4. Step 4: Simplify right side
    35,650.40x = 970,632,975.36
  5. Step 5: Solve for x
    x = 970,632,975.36/35,650.40
  6. Step 6: Final answer
    x = 27,226.43

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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.