Home / 55,289.88-82,926.27-20,221.34

Finding the Fourth Proportional to 55,289.88, 82,926.27 and 20,221.34

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Solution

The fourth proportional to 55,289.88, 82,926.27 and 20,221.34 is: 30,328.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,289.88 : 82,926.27 = 20,221.34 : x
  2. Step 2: Convert to fraction form
    55,289.88/82,926.27 = 20,221.34/x
  3. Step 3: Cross multiply
    55,289.88x = 82,926.27 × 20,221.34
  4. Step 4: Simplify right side
    55,289.88x = 1,676,879,885.97
  5. Step 5: Solve for x
    x = 1,676,879,885.97/55,289.88
  6. Step 6: Final answer
    x = 30,328.88

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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.