Home / 20,223.76-30,307.98-12,833.41

Finding the Fourth Proportional to 20,223.76, 30,307.98 and 12,833.41

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Solution

The fourth proportional to 20,223.76, 30,307.98 and 12,833.41 is: 19,232.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223.76 : 30,307.98 = 12,833.41 : x
  2. Step 2: Convert to fraction form
    20,223.76/30,307.98 = 12,833.41/x
  3. Step 3: Cross multiply
    20,223.76x = 30,307.98 × 12,833.41
  4. Step 4: Simplify right side
    20,223.76x = 388,954,733.61
  5. Step 5: Solve for x
    x = 388,954,733.61/20,223.76
  6. Step 6: Final answer
    x = 19,232.56

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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.