Home / 28,249.14-38,982.83-18,178.01

Finding the Fourth Proportional to 28,249.14, 38,982.83 and 18,178.01

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Solution

The fourth proportional to 28,249.14, 38,982.83 and 18,178.01 is: 25,085.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.14 : 38,982.83 = 18,178.01 : x
  2. Step 2: Convert to fraction form
    28,249.14/38,982.83 = 18,178.01/x
  3. Step 3: Cross multiply
    28,249.14x = 38,982.83 × 18,178.01
  4. Step 4: Simplify right side
    28,249.14x = 708,630,273.57
  5. Step 5: Solve for x
    x = 708,630,273.57/28,249.14
  6. Step 6: Final answer
    x = 25,085.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.