Home / 34,786.72-48,005.79-18,871.28

Finding the Fourth Proportional to 34,786.72, 48,005.79 and 18,871.28

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Solution

The fourth proportional to 34,786.72, 48,005.79 and 18,871.28 is: 26,042.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,786.72 : 48,005.79 = 18,871.28 : x
  2. Step 2: Convert to fraction form
    34,786.72/48,005.79 = 18,871.28/x
  3. Step 3: Cross multiply
    34,786.72x = 48,005.79 × 18,871.28
  4. Step 4: Simplify right side
    34,786.72x = 905,930,704.71
  5. Step 5: Solve for x
    x = 905,930,704.71/34,786.72
  6. Step 6: Final answer
    x = 26,042.43

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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.