Home / 43,171.09-64,754.47-12,006.61

Finding the Fourth Proportional to 43,171.09, 64,754.47 and 12,006.61

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Solution

The fourth proportional to 43,171.09, 64,754.47 and 12,006.61 is: 18,009.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,171.09 : 64,754.47 = 12,006.61 : x
  2. Step 2: Convert to fraction form
    43,171.09/64,754.47 = 12,006.61/x
  3. Step 3: Cross multiply
    43,171.09x = 64,754.47 × 12,006.61
  4. Step 4: Simplify right side
    43,171.09x = 777,481,667.05
  5. Step 5: Solve for x
    x = 777,481,667.05/43,171.09
  6. Step 6: Final answer
    x = 18,009.31

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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.