Home / 19,247.78-28,831.14-9,859.26

Finding the Fourth Proportional to 19,247.78, 28,831.14 and 9,859.26

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Solution

The fourth proportional to 19,247.78, 28,831.14 and 9,859.26 is: 14,768.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,247.78 : 28,831.14 = 9,859.26 : x
  2. Step 2: Convert to fraction form
    19,247.78/28,831.14 = 9,859.26/x
  3. Step 3: Cross multiply
    19,247.78x = 28,831.14 × 9,859.26
  4. Step 4: Simplify right side
    19,247.78x = 284,253,705.36
  5. Step 5: Solve for x
    x = 284,253,705.36/19,247.78
  6. Step 6: Final answer
    x = 14,768.13

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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.