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Finding the Fourth Proportional to 32,939.96, 49,409.96 and 7,980.03

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Solution

The fourth proportional to 32,939.96, 49,409.96 and 7,980.03 is: 11,970.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,939.96 : 49,409.96 = 7,980.03 : x
  2. Step 2: Convert to fraction form
    32,939.96/49,409.96 = 7,980.03/x
  3. Step 3: Cross multiply
    32,939.96x = 49,409.96 × 7,980.03
  4. Step 4: Simplify right side
    32,939.96x = 394,292,923.20
  5. Step 5: Solve for x
    x = 394,292,923.20/32,939.96
  6. Step 6: Final answer
    x = 11,970.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.