Home / 44,143.76-66,215.62-12,979

Finding the Fourth Proportional to 44,143.76, 66,215.62 and 12,979

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Solution

The fourth proportional to 44,143.76, 66,215.62 and 12,979 is: 19,468.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,143.76 : 66,215.62 = 12,979 : x
  2. Step 2: Convert to fraction form
    44,143.76/66,215.62 = 12,979/x
  3. Step 3: Cross multiply
    44,143.76x = 66,215.62 × 12,979
  4. Step 4: Simplify right side
    44,143.76x = 859,412,531.98
  5. Step 5: Solve for x
    x = 859,412,531.98/44,143.76
  6. Step 6: Final answer
    x = 19,468.49

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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.