Home / 31,623.16-43,644.54-18,876.88

Finding the Fourth Proportional to 31,623.16, 43,644.54 and 18,876.88

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Solution

The fourth proportional to 31,623.16, 43,644.54 and 18,876.88 is: 26,052.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,623.16 : 43,644.54 = 18,876.88 : x
  2. Step 2: Convert to fraction form
    31,623.16/43,644.54 = 18,876.88/x
  3. Step 3: Cross multiply
    31,623.16x = 43,644.54 × 18,876.88
  4. Step 4: Simplify right side
    31,623.16x = 823,872,431.63
  5. Step 5: Solve for x
    x = 823,872,431.63/31,623.16
  6. Step 6: Final answer
    x = 26,052.82

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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.