Home / 29,260.65-40,379.41-15,831.61

Finding the Fourth Proportional to 29,260.65, 40,379.41 and 15,831.61

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Solution

The fourth proportional to 29,260.65, 40,379.41 and 15,831.61 is: 21,847.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,260.65 : 40,379.41 = 15,831.61 : x
  2. Step 2: Convert to fraction form
    29,260.65/40,379.41 = 15,831.61/x
  3. Step 3: Cross multiply
    29,260.65x = 40,379.41 × 15,831.61
  4. Step 4: Simplify right side
    29,260.65x = 639,271,103.56
  5. Step 5: Solve for x
    x = 639,271,103.56/29,260.65
  6. Step 6: Final answer
    x = 21,847.47

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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.