Home / 20,724.83-31,090.33-6,680.24

Finding the Fourth Proportional to 20,724.83, 31,090.33 and 6,680.24

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Solution

The fourth proportional to 20,724.83, 31,090.33 and 6,680.24 is: 10,021.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.83 : 31,090.33 = 6,680.24 : x
  2. Step 2: Convert to fraction form
    20,724.83/31,090.33 = 6,680.24/x
  3. Step 3: Cross multiply
    20,724.83x = 31,090.33 × 6,680.24
  4. Step 4: Simplify right side
    20,724.83x = 207,690,835.57
  5. Step 5: Solve for x
    x = 207,690,835.57/20,724.83
  6. Step 6: Final answer
    x = 10,021.35

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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.