Home / 19,993.86-29,965.59-10,135.62

Finding the Fourth Proportional to 19,993.86, 29,965.59 and 10,135.62

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Solution

The fourth proportional to 19,993.86, 29,965.59 and 10,135.62 is: 15,190.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,993.86 : 29,965.59 = 10,135.62 : x
  2. Step 2: Convert to fraction form
    19,993.86/29,965.59 = 10,135.62/x
  3. Step 3: Cross multiply
    19,993.86x = 29,965.59 × 10,135.62
  4. Step 4: Simplify right side
    19,993.86x = 303,719,833.32
  5. Step 5: Solve for x
    x = 303,719,833.32/19,993.86
  6. Step 6: Final answer
    x = 15,190.66

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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.