Home / 47,722.68-71,587.44-12,661.56

Finding the Fourth Proportional to 47,722.68, 71,587.44 and 12,661.56

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Solution

The fourth proportional to 47,722.68, 71,587.44 and 12,661.56 is: 18,993.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,722.68 : 71,587.44 = 12,661.56 : x
  2. Step 2: Convert to fraction form
    47,722.68/71,587.44 = 12,661.56/x
  3. Step 3: Cross multiply
    47,722.68x = 71,587.44 × 12,661.56
  4. Step 4: Simplify right side
    47,722.68x = 906,408,666.81
  5. Step 5: Solve for x
    x = 906,408,666.81/47,722.68
  6. Step 6: Final answer
    x = 18,993.25

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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.