Home / 22,707.38-31,336.68-12,636.20

Finding the Fourth Proportional to 22,707.38, 31,336.68 and 12,636.20

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Solution

The fourth proportional to 22,707.38, 31,336.68 and 12,636.20 is: 17,438.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,707.38 : 31,336.68 = 12,636.20 : x
  2. Step 2: Convert to fraction form
    22,707.38/31,336.68 = 12,636.20/x
  3. Step 3: Cross multiply
    22,707.38x = 31,336.68 × 12,636.20
  4. Step 4: Simplify right side
    22,707.38x = 395,976,555.82
  5. Step 5: Solve for x
    x = 395,976,555.82/22,707.38
  6. Step 6: Final answer
    x = 17,438.23

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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.