Home / 21,153.96-31,717.58-10,611.41

Finding the Fourth Proportional to 21,153.96, 31,717.58 and 10,611.41

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Solution

The fourth proportional to 21,153.96, 31,717.58 and 10,611.41 is: 15,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153.96 : 31,717.58 = 10,611.41 : x
  2. Step 2: Convert to fraction form
    21,153.96/31,717.58 = 10,611.41/x
  3. Step 3: Cross multiply
    21,153.96x = 31,717.58 × 10,611.41
  4. Step 4: Simplify right side
    21,153.96x = 336,568,033.94
  5. Step 5: Solve for x
    x = 336,568,033.94/21,153.96
  6. Step 6: Final answer
    x = 15,910.40

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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.