Home / 19,831.66-29,755.28-8,730.56

Finding the Fourth Proportional to 19,831.66, 29,755.28 and 8,730.56

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Solution

The fourth proportional to 19,831.66, 29,755.28 and 8,730.56 is: 13,099.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.66 : 29,755.28 = 8,730.56 : x
  2. Step 2: Convert to fraction form
    19,831.66/29,755.28 = 8,730.56/x
  3. Step 3: Cross multiply
    19,831.66x = 29,755.28 × 8,730.56
  4. Step 4: Simplify right side
    19,831.66x = 259,780,273.23
  5. Step 5: Solve for x
    x = 259,780,273.23/19,831.66
  6. Step 6: Final answer
    x = 13,099.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.