Home / 20,762.45-31,149-5,972.52

Finding the Fourth Proportional to 20,762.45, 31,149 and 5,972.52

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Solution

The fourth proportional to 20,762.45, 31,149 and 5,972.52 is: 8,960.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.45 : 31,149 = 5,972.52 : x
  2. Step 2: Convert to fraction form
    20,762.45/31,149 = 5,972.52/x
  3. Step 3: Cross multiply
    20,762.45x = 31,149 × 5,972.52
  4. Step 4: Simplify right side
    20,762.45x = 186,038,025.48
  5. Step 5: Solve for x
    x = 186,038,025.48/20,762.45
  6. Step 6: Final answer
    x = 8,960.31

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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.