Home / 35,680.36-49,234.62-20,578

Finding the Fourth Proportional to 35,680.36, 49,234.62 and 20,578

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Solution

The fourth proportional to 35,680.36, 49,234.62 and 20,578 is: 28,395.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,680.36 : 49,234.62 = 20,578 : x
  2. Step 2: Convert to fraction form
    35,680.36/49,234.62 = 20,578/x
  3. Step 3: Cross multiply
    35,680.36x = 49,234.62 × 20,578
  4. Step 4: Simplify right side
    35,680.36x = 1,013,150,010.36
  5. Step 5: Solve for x
    x = 1,013,150,010.36/35,680.36
  6. Step 6: Final answer
    x = 28,395.17

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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.