Home / 20,624.60-30,936.63-5,042.36

Finding the Fourth Proportional to 20,624.60, 30,936.63 and 5,042.36

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Solution

The fourth proportional to 20,624.60, 30,936.63 and 5,042.36 is: 7,563.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.60 : 30,936.63 = 5,042.36 : x
  2. Step 2: Convert to fraction form
    20,624.60/30,936.63 = 5,042.36/x
  3. Step 3: Cross multiply
    20,624.60x = 30,936.63 × 5,042.36
  4. Step 4: Simplify right side
    20,624.60x = 155,993,702.99
  5. Step 5: Solve for x
    x = 155,993,702.99/20,624.60
  6. Step 6: Final answer
    x = 7,563.48

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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.