Home / 20,288.97-30,433.47-9,193.59

Finding the Fourth Proportional to 20,288.97, 30,433.47 and 9,193.59

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Solution

The fourth proportional to 20,288.97, 30,433.47 and 9,193.59 is: 13,790.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288.97 : 30,433.47 = 9,193.59 : x
  2. Step 2: Convert to fraction form
    20,288.97/30,433.47 = 9,193.59/x
  3. Step 3: Cross multiply
    20,288.97x = 30,433.47 × 9,193.59
  4. Step 4: Simplify right side
    20,288.97x = 279,792,845.46
  5. Step 5: Solve for x
    x = 279,792,845.46/20,288.97
  6. Step 6: Final answer
    x = 13,790.39

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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.