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Finding the Fourth Proportional to 35,795.70, 49,395.96 and 19,879.20

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Solution

The fourth proportional to 35,795.70, 49,395.96 and 19,879.20 is: 27,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,795.70 : 49,395.96 = 19,879.20 : x
  2. Step 2: Convert to fraction form
    35,795.70/49,395.96 = 19,879.20/x
  3. Step 3: Cross multiply
    35,795.70x = 49,395.96 × 19,879.20
  4. Step 4: Simplify right side
    35,795.70x = 981,952,168.03
  5. Step 5: Solve for x
    x = 981,952,168.03/35,795.70
  6. Step 6: Final answer
    x = 27,432.13

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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.