Home / 22,648.11-31,255.19-12,576.72

Finding the Fourth Proportional to 22,648.11, 31,255.19 and 12,576.72

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Solution

The fourth proportional to 22,648.11, 31,255.19 and 12,576.72 is: 17,356.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,648.11 : 31,255.19 = 12,576.72 : x
  2. Step 2: Convert to fraction form
    22,648.11/31,255.19 = 12,576.72/x
  3. Step 3: Cross multiply
    22,648.11x = 31,255.19 × 12,576.72
  4. Step 4: Simplify right side
    22,648.11x = 393,087,734.22
  5. Step 5: Solve for x
    x = 393,087,734.22/22,648.11
  6. Step 6: Final answer
    x = 17,356.32

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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.