Home / 19,993.15-29,960.56-11,230.57

Finding the Fourth Proportional to 19,993.15, 29,960.56 and 11,230.57

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Solution

The fourth proportional to 19,993.15, 29,960.56 and 11,230.57 is: 16,829.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,993.15 : 29,960.56 = 11,230.57 : x
  2. Step 2: Convert to fraction form
    19,993.15/29,960.56 = 11,230.57/x
  3. Step 3: Cross multiply
    19,993.15x = 29,960.56 × 11,230.57
  4. Step 4: Simplify right side
    19,993.15x = 336,474,166.32
  5. Step 5: Solve for x
    x = 336,474,166.32/19,993.15
  6. Step 6: Final answer
    x = 16,829.47

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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.