Home / 43,171.35-64,765.78-18,211.48

Finding the Fourth Proportional to 43,171.35, 64,765.78 and 18,211.48

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Solution

The fourth proportional to 43,171.35, 64,765.78 and 18,211.48 is: 27,320.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,171.35 : 64,765.78 = 18,211.48 : x
  2. Step 2: Convert to fraction form
    43,171.35/64,765.78 = 18,211.48/x
  3. Step 3: Cross multiply
    43,171.35x = 64,765.78 × 18,211.48
  4. Step 4: Simplify right side
    43,171.35x = 1,179,480,499.71
  5. Step 5: Solve for x
    x = 1,179,480,499.71/43,171.35
  6. Step 6: Final answer
    x = 27,320.91

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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.