Home / 31,215.41-43,077.30-17,786.62

Finding the Fourth Proportional to 31,215.41, 43,077.30 and 17,786.62

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Solution

The fourth proportional to 31,215.41, 43,077.30 and 17,786.62 is: 24,545.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215.41 : 43,077.30 = 17,786.62 : x
  2. Step 2: Convert to fraction form
    31,215.41/43,077.30 = 17,786.62/x
  3. Step 3: Cross multiply
    31,215.41x = 43,077.30 × 17,786.62
  4. Step 4: Simplify right side
    31,215.41x = 766,199,652.92
  5. Step 5: Solve for x
    x = 766,199,652.92/31,215.41
  6. Step 6: Final answer
    x = 24,545.56

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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.