Home / 43,009.91-64,533.15-20,839.80

Finding the Fourth Proportional to 43,009.91, 64,533.15 and 20,839.80

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Solution

The fourth proportional to 43,009.91, 64,533.15 and 20,839.80 is: 31,268.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,009.91 : 64,533.15 = 20,839.80 : x
  2. Step 2: Convert to fraction form
    43,009.91/64,533.15 = 20,839.80/x
  3. Step 3: Cross multiply
    43,009.91x = 64,533.15 × 20,839.80
  4. Step 4: Simplify right side
    43,009.91x = 1,344,857,939.37
  5. Step 5: Solve for x
    x = 1,344,857,939.37/43,009.91
  6. Step 6: Final answer
    x = 31,268.56

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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.