Home / 40,228.80-60,343.20-19,469.76

Finding the Fourth Proportional to 40,228.80, 60,343.20 and 19,469.76

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Solution

The fourth proportional to 40,228.80, 60,343.20 and 19,469.76 is: 29,204.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,228.80 : 60,343.20 = 19,469.76 : x
  2. Step 2: Convert to fraction form
    40,228.80/60,343.20 = 19,469.76/x
  3. Step 3: Cross multiply
    40,228.80x = 60,343.20 × 19,469.76
  4. Step 4: Simplify right side
    40,228.80x = 1,174,867,621.63
  5. Step 5: Solve for x
    x = 1,174,867,621.63/40,228.80
  6. Step 6: Final answer
    x = 29,204.64

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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.