Home / 21,801.56-30,078.36-14,252.22

Finding the Fourth Proportional to 21,801.56, 30,078.36 and 14,252.22

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Solution

The fourth proportional to 21,801.56, 30,078.36 and 14,252.22 is: 19,662.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,801.56 : 30,078.36 = 14,252.22 : x
  2. Step 2: Convert to fraction form
    21,801.56/30,078.36 = 14,252.22/x
  3. Step 3: Cross multiply
    21,801.56x = 30,078.36 × 14,252.22
  4. Step 4: Simplify right side
    21,801.56x = 428,683,403.96
  5. Step 5: Solve for x
    x = 428,683,403.96/21,801.56
  6. Step 6: Final answer
    x = 19,662.97

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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.