Home / 21,022.68-31,532.06-12,252.12

Finding the Fourth Proportional to 21,022.68, 31,532.06 and 12,252.12

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Solution

The fourth proportional to 21,022.68, 31,532.06 and 12,252.12 is: 18,377.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.68 : 31,532.06 = 12,252.12 : x
  2. Step 2: Convert to fraction form
    21,022.68/31,532.06 = 12,252.12/x
  3. Step 3: Cross multiply
    21,022.68x = 31,532.06 × 12,252.12
  4. Step 4: Simplify right side
    21,022.68x = 386,334,582.97
  5. Step 5: Solve for x
    x = 386,334,582.97/21,022.68
  6. Step 6: Final answer
    x = 18,377.04

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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.