Home / 40,122.80-55,368.79-22,217.43

Finding the Fourth Proportional to 40,122.80, 55,368.79 and 22,217.43

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Solution

The fourth proportional to 40,122.80, 55,368.79 and 22,217.43 is: 30,659.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,122.80 : 55,368.79 = 22,217.43 : x
  2. Step 2: Convert to fraction form
    40,122.80/55,368.79 = 22,217.43/x
  3. Step 3: Cross multiply
    40,122.80x = 55,368.79 × 22,217.43
  4. Step 4: Simplify right side
    40,122.80x = 1,230,151,921.75
  5. Step 5: Solve for x
    x = 1,230,151,921.75/40,122.80
  6. Step 6: Final answer
    x = 30,659.67

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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.