Home / 21,063.96-31,568.60-8,569.44

Finding the Fourth Proportional to 21,063.96, 31,568.60 and 8,569.44

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Solution

The fourth proportional to 21,063.96, 31,568.60 and 8,569.44 is: 12,843.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.96 : 31,568.60 = 8,569.44 : x
  2. Step 2: Convert to fraction form
    21,063.96/31,568.60 = 8,569.44/x
  3. Step 3: Cross multiply
    21,063.96x = 31,568.60 × 8,569.44
  4. Step 4: Simplify right side
    21,063.96x = 270,525,223.58
  5. Step 5: Solve for x
    x = 270,525,223.58/21,063.96
  6. Step 6: Final answer
    x = 12,843.04

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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.