Home / 31,523.97-47,285.36-7,831.57

Finding the Fourth Proportional to 31,523.97, 47,285.36 and 7,831.57

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Solution

The fourth proportional to 31,523.97, 47,285.36 and 7,831.57 is: 11,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,523.97 : 47,285.36 = 7,831.57 : x
  2. Step 2: Convert to fraction form
    31,523.97/47,285.36 = 7,831.57/x
  3. Step 3: Cross multiply
    31,523.97x = 47,285.36 × 7,831.57
  4. Step 4: Simplify right side
    31,523.97x = 370,318,370.39
  5. Step 5: Solve for x
    x = 370,318,370.39/31,523.97
  6. Step 6: Final answer
    x = 11,747.20

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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.