Home / 18,832.78-28,240.30-10,937.82

Finding the Fourth Proportional to 18,832.78, 28,240.30 and 10,937.82

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Solution

The fourth proportional to 18,832.78, 28,240.30 and 10,937.82 is: 16,401.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,832.78 : 28,240.30 = 10,937.82 : x
  2. Step 2: Convert to fraction form
    18,832.78/28,240.30 = 10,937.82/x
  3. Step 3: Cross multiply
    18,832.78x = 28,240.30 × 10,937.82
  4. Step 4: Simplify right side
    18,832.78x = 308,887,318.15
  5. Step 5: Solve for x
    x = 308,887,318.15/18,832.78
  6. Step 6: Final answer
    x = 16,401.58

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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.