Home / 21,781.44-30,058.39-12,350.00

Finding the Fourth Proportional to 21,781.44, 30,058.39 and 12,350.00

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Solution

The fourth proportional to 21,781.44, 30,058.39 and 12,350.00 is: 17,043.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,781.44 : 30,058.39 = 12,350.00 : x
  2. Step 2: Convert to fraction form
    21,781.44/30,058.39 = 12,350.00/x
  3. Step 3: Cross multiply
    21,781.44x = 30,058.39 × 12,350.00
  4. Step 4: Simplify right side
    21,781.44x = 371,221,207.08
  5. Step 5: Solve for x
    x = 371,221,207.08/21,781.44
  6. Step 6: Final answer
    x = 17,043.01

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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.