Home / 28,719.97-43,086.83-13,911.58

Finding the Fourth Proportional to 28,719.97, 43,086.83 and 13,911.58

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Solution

The fourth proportional to 28,719.97, 43,086.83 and 13,911.58 is: 20,870.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,719.97 : 43,086.83 = 13,911.58 : x
  2. Step 2: Convert to fraction form
    28,719.97/43,086.83 = 13,911.58/x
  3. Step 3: Cross multiply
    28,719.97x = 43,086.83 × 13,911.58
  4. Step 4: Simplify right side
    28,719.97x = 599,405,597.50
  5. Step 5: Solve for x
    x = 599,405,597.50/28,719.97
  6. Step 6: Final answer
    x = 20,870.69

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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.