Home / 20,526.21-30,789.33-4,943.85

Finding the Fourth Proportional to 20,526.21, 30,789.33 and 4,943.85

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Solution

The fourth proportional to 20,526.21, 30,789.33 and 4,943.85 is: 7,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.21 : 30,789.33 = 4,943.85 : x
  2. Step 2: Convert to fraction form
    20,526.21/30,789.33 = 4,943.85/x
  3. Step 3: Cross multiply
    20,526.21x = 30,789.33 × 4,943.85
  4. Step 4: Simplify right side
    20,526.21x = 152,217,829.12
  5. Step 5: Solve for x
    x = 152,217,829.12/20,526.21
  6. Step 6: Final answer
    x = 7,415.78

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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.