Home / 20,363.45-30,535.52-7,889.31

Finding the Fourth Proportional to 20,363.45, 30,535.52 and 7,889.31

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Solution

The fourth proportional to 20,363.45, 30,535.52 and 7,889.31 is: 11,830.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363.45 : 30,535.52 = 7,889.31 : x
  2. Step 2: Convert to fraction form
    20,363.45/30,535.52 = 7,889.31/x
  3. Step 3: Cross multiply
    20,363.45x = 30,535.52 × 7,889.31
  4. Step 4: Simplify right side
    20,363.45x = 240,904,143.84
  5. Step 5: Solve for x
    x = 240,904,143.84/20,363.45
  6. Step 6: Final answer
    x = 11,830.23

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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.