Home / 27,161.57-40,720.43-9,621.83

Finding the Fourth Proportional to 27,161.57, 40,720.43 and 9,621.83

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Solution

The fourth proportional to 27,161.57, 40,720.43 and 9,621.83 is: 14,424.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,161.57 : 40,720.43 = 9,621.83 : x
  2. Step 2: Convert to fraction form
    27,161.57/40,720.43 = 9,621.83/x
  3. Step 3: Cross multiply
    27,161.57x = 40,720.43 × 9,621.83
  4. Step 4: Simplify right side
    27,161.57x = 391,804,803.28
  5. Step 5: Solve for x
    x = 391,804,803.28/27,161.57
  6. Step 6: Final answer
    x = 14,424.97

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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.