Home / 21,196.92-31,812.66-10,811.64

Finding the Fourth Proportional to 21,196.92, 31,812.66 and 10,811.64

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Solution

The fourth proportional to 21,196.92, 31,812.66 and 10,811.64 is: 16,226.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,196.92 : 31,812.66 = 10,811.64 : x
  2. Step 2: Convert to fraction form
    21,196.92/31,812.66 = 10,811.64/x
  3. Step 3: Cross multiply
    21,196.92x = 31,812.66 × 10,811.64
  4. Step 4: Simplify right side
    21,196.92x = 343,947,027.36
  5. Step 5: Solve for x
    x = 343,947,027.36/21,196.92
  6. Step 6: Final answer
    x = 16,226.27

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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.