Home / 21,789.11-30,058.99-12,832.33

Finding the Fourth Proportional to 21,789.11, 30,058.99 and 12,832.33

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Solution

The fourth proportional to 21,789.11, 30,058.99 and 12,832.33 is: 17,702.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789.11 : 30,058.99 = 12,832.33 : x
  2. Step 2: Convert to fraction form
    21,789.11/30,058.99 = 12,832.33/x
  3. Step 3: Cross multiply
    21,789.11x = 30,058.99 × 12,832.33
  4. Step 4: Simplify right side
    21,789.11x = 385,726,664.69
  5. Step 5: Solve for x
    x = 385,726,664.69/21,789.11
  6. Step 6: Final answer
    x = 17,702.73

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1.5x scale

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.