Home / 20,701.92-31,055.22-6,657.06

Finding the Fourth Proportional to 20,701.92, 31,055.22 and 6,657.06

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Solution

The fourth proportional to 20,701.92, 31,055.22 and 6,657.06 is: 9,986.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.92 : 31,055.22 = 6,657.06 : x
  2. Step 2: Convert to fraction form
    20,701.92/31,055.22 = 6,657.06/x
  3. Step 3: Cross multiply
    20,701.92x = 31,055.22 × 6,657.06
  4. Step 4: Simplify right side
    20,701.92x = 206,736,462.85
  5. Step 5: Solve for x
    x = 206,736,462.85/20,701.92
  6. Step 6: Final answer
    x = 9,986.34

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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.