Home / 31,831.07-47,736.60-10,767.18

Finding the Fourth Proportional to 31,831.07, 47,736.60 and 10,767.18

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Solution

The fourth proportional to 31,831.07, 47,736.60 and 10,767.18 is: 16,147.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,831.07 : 47,736.60 = 10,767.18 : x
  2. Step 2: Convert to fraction form
    31,831.07/47,736.60 = 10,767.18/x
  3. Step 3: Cross multiply
    31,831.07x = 47,736.60 × 10,767.18
  4. Step 4: Simplify right side
    31,831.07x = 513,988,564.79
  5. Step 5: Solve for x
    x = 513,988,564.79/31,831.07
  6. Step 6: Final answer
    x = 16,147.39

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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.