Home / 21,161.13-31,734.41-6,366.08

Finding the Fourth Proportional to 21,161.13, 31,734.41 and 6,366.08

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Solution

The fourth proportional to 21,161.13, 31,734.41 and 6,366.08 is: 9,546.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,161.13 : 31,734.41 = 6,366.08 : x
  2. Step 2: Convert to fraction form
    21,161.13/31,734.41 = 6,366.08/x
  3. Step 3: Cross multiply
    21,161.13x = 31,734.41 × 6,366.08
  4. Step 4: Simplify right side
    21,161.13x = 202,023,602.31
  5. Step 5: Solve for x
    x = 202,023,602.31/21,161.13
  6. Step 6: Final answer
    x = 9,546.92

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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.