Home / 21,099.26-31,620.95-11,217.26

Finding the Fourth Proportional to 21,099.26, 31,620.95 and 11,217.26

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Solution

The fourth proportional to 21,099.26, 31,620.95 and 11,217.26 is: 16,811.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,099.26 : 31,620.95 = 11,217.26 : x
  2. Step 2: Convert to fraction form
    21,099.26/31,620.95 = 11,217.26/x
  3. Step 3: Cross multiply
    21,099.26x = 31,620.95 × 11,217.26
  4. Step 4: Simplify right side
    21,099.26x = 354,700,361.51
  5. Step 5: Solve for x
    x = 354,700,361.51/21,099.26
  6. Step 6: Final answer
    x = 16,811.03

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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.