Home / 22,287.72-30,763.62-12,862.92

Finding the Fourth Proportional to 22,287.72, 30,763.62 and 12,862.92

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Solution

The fourth proportional to 22,287.72, 30,763.62 and 12,862.92 is: 17,754.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,287.72 : 30,763.62 = 12,862.92 : x
  2. Step 2: Convert to fraction form
    22,287.72/30,763.62 = 12,862.92/x
  3. Step 3: Cross multiply
    22,287.72x = 30,763.62 × 12,862.92
  4. Step 4: Simplify right side
    22,287.72x = 395,709,982.97
  5. Step 5: Solve for x
    x = 395,709,982.97/22,287.72
  6. Step 6: Final answer
    x = 17,754.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.