Home / 31,563.71-47,333.26-11,831.50

Finding the Fourth Proportional to 31,563.71, 47,333.26 and 11,831.50

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Solution

The fourth proportional to 31,563.71, 47,333.26 and 11,831.50 is: 17,742.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,563.71 : 47,333.26 = 11,831.50 : x
  2. Step 2: Convert to fraction form
    31,563.71/47,333.26 = 11,831.50/x
  3. Step 3: Cross multiply
    31,563.71x = 47,333.26 × 11,831.50
  4. Step 4: Simplify right side
    31,563.71x = 560,023,539.65
  5. Step 5: Solve for x
    x = 560,023,539.65/31,563.71
  6. Step 6: Final answer
    x = 17,742.64

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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.