Home / 21,161.93-31,742.82-6,370.83

Finding the Fourth Proportional to 21,161.93, 31,742.82 and 6,370.83

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Solution

The fourth proportional to 21,161.93, 31,742.82 and 6,370.83 is: 9,556.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,161.93 : 31,742.82 = 6,370.83 : x
  2. Step 2: Convert to fraction form
    21,161.93/31,742.82 = 6,370.83/x
  3. Step 3: Cross multiply
    21,161.93x = 31,742.82 × 6,370.83
  4. Step 4: Simplify right side
    21,161.93x = 202,228,109.94
  5. Step 5: Solve for x
    x = 202,228,109.94/21,161.93
  6. Step 6: Final answer
    x = 9,556.22

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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.