Home / 31,922.87-47,831.63-18,558.36

Finding the Fourth Proportional to 31,922.87, 47,831.63 and 18,558.36

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Solution

The fourth proportional to 31,922.87, 47,831.63 and 18,558.36 is: 27,806.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,922.87 : 47,831.63 = 18,558.36 : x
  2. Step 2: Convert to fraction form
    31,922.87/47,831.63 = 18,558.36/x
  3. Step 3: Cross multiply
    31,922.87x = 47,831.63 × 18,558.36
  4. Step 4: Simplify right side
    31,922.87x = 887,676,369.77
  5. Step 5: Solve for x
    x = 887,676,369.77/31,922.87
  6. Step 6: Final answer
    x = 27,806.91

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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.