Home / 19,884.72-29,831.96-9,894.18

Finding the Fourth Proportional to 19,884.72, 29,831.96 and 9,894.18

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Solution

The fourth proportional to 19,884.72, 29,831.96 and 9,894.18 is: 14,843.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,884.72 : 29,831.96 = 9,894.18 : x
  2. Step 2: Convert to fraction form
    19,884.72/29,831.96 = 9,894.18/x
  3. Step 3: Cross multiply
    19,884.72x = 29,831.96 × 9,894.18
  4. Step 4: Simplify right side
    19,884.72x = 295,162,781.99
  5. Step 5: Solve for x
    x = 295,162,781.99/19,884.72
  6. Step 6: Final answer
    x = 14,843.70

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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.