Home / 34,119.12-51,234.36-21,054.60

Finding the Fourth Proportional to 34,119.12, 51,234.36 and 21,054.60

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Solution

The fourth proportional to 34,119.12, 51,234.36 and 21,054.60 is: 31,616.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,119.12 : 51,234.36 = 21,054.60 : x
  2. Step 2: Convert to fraction form
    34,119.12/51,234.36 = 21,054.60/x
  3. Step 3: Cross multiply
    34,119.12x = 51,234.36 × 21,054.60
  4. Step 4: Simplify right side
    34,119.12x = 1,078,718,956.06
  5. Step 5: Solve for x
    x = 1,078,718,956.06/34,119.12
  6. Step 6: Final answer
    x = 31,616.26

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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.