Home / 40,120.70-55,368.60-22,217.68

Finding the Fourth Proportional to 40,120.70, 55,368.60 and 22,217.68

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Solution

The fourth proportional to 40,120.70, 55,368.60 and 22,217.68 is: 30,661.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,120.70 : 55,368.60 = 22,217.68 : x
  2. Step 2: Convert to fraction form
    40,120.70/55,368.60 = 22,217.68/x
  3. Step 3: Cross multiply
    40,120.70x = 55,368.60 × 22,217.68
  4. Step 4: Simplify right side
    40,120.70x = 1,230,161,836.85
  5. Step 5: Solve for x
    x = 1,230,161,836.85/40,120.70
  6. Step 6: Final answer
    x = 30,661.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.