Home / 30,122.72-41,568.76-18,186.56

Finding the Fourth Proportional to 30,122.72, 41,568.76 and 18,186.56

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Solution

The fourth proportional to 30,122.72, 41,568.76 and 18,186.56 is: 25,097.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,122.72 : 41,568.76 = 18,186.56 : x
  2. Step 2: Convert to fraction form
    30,122.72/41,568.76 = 18,186.56/x
  3. Step 3: Cross multiply
    30,122.72x = 41,568.76 × 18,186.56
  4. Step 4: Simplify right side
    30,122.72x = 755,992,656.93
  5. Step 5: Solve for x
    x = 755,992,656.93/30,122.72
  6. Step 6: Final answer
    x = 25,097.09

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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.