Home / 35,418.12-53,121.03-13,231.68

Finding the Fourth Proportional to 35,418.12, 53,121.03 and 13,231.68

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Solution

The fourth proportional to 35,418.12, 53,121.03 and 13,231.68 is: 19,845.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,418.12 : 53,121.03 = 13,231.68 : x
  2. Step 2: Convert to fraction form
    35,418.12/53,121.03 = 13,231.68/x
  3. Step 3: Cross multiply
    35,418.12x = 53,121.03 × 13,231.68
  4. Step 4: Simplify right side
    35,418.12x = 702,880,470.23
  5. Step 5: Solve for x
    x = 702,880,470.23/35,418.12
  6. Step 6: Final answer
    x = 19,845.22

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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.