Home / 20,020.06-30,031.46-6,881.66

Finding the Fourth Proportional to 20,020.06, 30,031.46 and 6,881.66

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Solution

The fourth proportional to 20,020.06, 30,031.46 and 6,881.66 is: 10,322.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.06 : 30,031.46 = 6,881.66 : x
  2. Step 2: Convert to fraction form
    20,020.06/30,031.46 = 6,881.66/x
  3. Step 3: Cross multiply
    20,020.06x = 30,031.46 × 6,881.66
  4. Step 4: Simplify right side
    20,020.06x = 206,666,250.88
  5. Step 5: Solve for x
    x = 206,666,250.88/20,020.06
  6. Step 6: Final answer
    x = 10,322.96

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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.