Home / 20,529.40-30,794.11-4,947.03

Finding the Fourth Proportional to 20,529.40, 30,794.11 and 4,947.03

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Solution

The fourth proportional to 20,529.40, 30,794.11 and 4,947.03 is: 7,420.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.40 : 30,794.11 = 4,947.03 : x
  2. Step 2: Convert to fraction form
    20,529.40/30,794.11 = 4,947.03/x
  3. Step 3: Cross multiply
    20,529.40x = 30,794.11 × 4,947.03
  4. Step 4: Simplify right side
    20,529.40x = 152,339,385.99
  5. Step 5: Solve for x
    x = 152,339,385.99/20,529.40
  6. Step 6: Final answer
    x = 7,420.55

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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.