Home / 21,063.66-31,568.22-8,569.18

Finding the Fourth Proportional to 21,063.66, 31,568.22 and 8,569.18

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Solution

The fourth proportional to 21,063.66, 31,568.22 and 8,569.18 is: 12,842.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.66 : 31,568.22 = 8,569.18 : x
  2. Step 2: Convert to fraction form
    21,063.66/31,568.22 = 8,569.18/x
  3. Step 3: Cross multiply
    21,063.66x = 31,568.22 × 8,569.18
  4. Step 4: Simplify right side
    21,063.66x = 270,513,759.46
  5. Step 5: Solve for x
    x = 270,513,759.46/21,063.66
  6. Step 6: Final answer
    x = 12,842.68

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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.