Home / 31,864.79-43,932.78-19,923.77

Finding the Fourth Proportional to 31,864.79, 43,932.78 and 19,923.77

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Solution

The fourth proportional to 31,864.79, 43,932.78 and 19,923.77 is: 27,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,864.79 : 43,932.78 = 19,923.77 : x
  2. Step 2: Convert to fraction form
    31,864.79/43,932.78 = 19,923.77/x
  3. Step 3: Cross multiply
    31,864.79x = 43,932.78 × 19,923.77
  4. Step 4: Simplify right side
    31,864.79x = 875,306,714.01
  5. Step 5: Solve for x
    x = 875,306,714.01/31,864.79
  6. Step 6: Final answer
    x = 27,469.40

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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.