Home / 20,812.28-31,223.34-6,021.54

Finding the Fourth Proportional to 20,812.28, 31,223.34 and 6,021.54

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Solution

The fourth proportional to 20,812.28, 31,223.34 and 6,021.54 is: 9,033.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,812.28 : 31,223.34 = 6,021.54 : x
  2. Step 2: Convert to fraction form
    20,812.28/31,223.34 = 6,021.54/x
  3. Step 3: Cross multiply
    20,812.28x = 31,223.34 × 6,021.54
  4. Step 4: Simplify right side
    20,812.28x = 188,012,590.74
  5. Step 5: Solve for x
    x = 188,012,590.74/20,812.28
  6. Step 6: Final answer
    x = 9,033.74

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1.5x scale

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.