Home / 22,664.22-31,278.60-13,235.82

Finding the Fourth Proportional to 22,664.22, 31,278.60 and 13,235.82

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Solution

The fourth proportional to 22,664.22, 31,278.60 and 13,235.82 is: 18,266.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,664.22 : 31,278.60 = 13,235.82 : x
  2. Step 2: Convert to fraction form
    22,664.22/31,278.60 = 13,235.82/x
  3. Step 3: Cross multiply
    22,664.22x = 31,278.60 × 13,235.82
  4. Step 4: Simplify right side
    22,664.22x = 413,997,919.45
  5. Step 5: Solve for x
    x = 413,997,919.45/22,664.22
  6. Step 6: Final answer
    x = 18,266.59

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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.