Home / 20,708.92-31,059.03-6,670.20

Finding the Fourth Proportional to 20,708.92, 31,059.03 and 6,670.20

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Solution

The fourth proportional to 20,708.92, 31,059.03 and 6,670.20 is: 10,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,708.92 : 31,059.03 = 6,670.20 : x
  2. Step 2: Convert to fraction form
    20,708.92/31,059.03 = 6,670.20/x
  3. Step 3: Cross multiply
    20,708.92x = 31,059.03 × 6,670.20
  4. Step 4: Simplify right side
    20,708.92x = 207,169,941.91
  5. Step 5: Solve for x
    x = 207,169,941.91/20,708.92
  6. Step 6: Final answer
    x = 10,003.90

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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.