Home / 22,648.43-31,255.11-12,577.49

Finding the Fourth Proportional to 22,648.43, 31,255.11 and 12,577.49

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Solution

The fourth proportional to 22,648.43, 31,255.11 and 12,577.49 is: 17,357.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,648.43 : 31,255.11 = 12,577.49 : x
  2. Step 2: Convert to fraction form
    22,648.43/31,255.11 = 12,577.49/x
  3. Step 3: Cross multiply
    22,648.43x = 31,255.11 × 12,577.49
  4. Step 4: Simplify right side
    22,648.43x = 393,110,911.61
  5. Step 5: Solve for x
    x = 393,110,911.61/22,648.43
  6. Step 6: Final answer
    x = 17,357.10

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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.