Home / 21,155.64-31,734.26-6,366.66

Finding the Fourth Proportional to 21,155.64, 31,734.26 and 6,366.66

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Solution

The fourth proportional to 21,155.64, 31,734.26 and 6,366.66 is: 9,550.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,155.64 : 31,734.26 = 6,366.66 : x
  2. Step 2: Convert to fraction form
    21,155.64/31,734.26 = 6,366.66/x
  3. Step 3: Cross multiply
    21,155.64x = 31,734.26 × 6,366.66
  4. Step 4: Simplify right side
    21,155.64x = 202,041,243.77
  5. Step 5: Solve for x
    x = 202,041,243.77/21,155.64
  6. Step 6: Final answer
    x = 9,550.23

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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.