Home / 29,260.46-40,379.15-15,831.42

Finding the Fourth Proportional to 29,260.46, 40,379.15 and 15,831.42

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Solution

The fourth proportional to 29,260.46, 40,379.15 and 15,831.42 is: 21,847.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,260.46 : 40,379.15 = 15,831.42 : x
  2. Step 2: Convert to fraction form
    29,260.46/40,379.15 = 15,831.42/x
  3. Step 3: Cross multiply
    29,260.46x = 40,379.15 × 15,831.42
  4. Step 4: Simplify right side
    29,260.46x = 639,259,473.89
  5. Step 5: Solve for x
    x = 639,259,473.89/29,260.46
  6. Step 6: Final answer
    x = 21,847.21

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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.