Home / 21,789.66-30,058.59-14,240.41

Finding the Fourth Proportional to 21,789.66, 30,058.59 and 14,240.41

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Solution

The fourth proportional to 21,789.66, 30,058.59 and 14,240.41 is: 19,644.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789.66 : 30,058.59 = 14,240.41 : x
  2. Step 2: Convert to fraction form
    21,789.66/30,058.59 = 14,240.41/x
  3. Step 3: Cross multiply
    21,789.66x = 30,058.59 × 14,240.41
  4. Step 4: Simplify right side
    21,789.66x = 428,046,623.88
  5. Step 5: Solve for x
    x = 428,046,623.88/21,789.66
  6. Step 6: Final answer
    x = 19,644.49

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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.