Home / 14,090.31-21,135.42-4,229.58

Finding the Fourth Proportional to 14,090.31, 21,135.42 and 4,229.58

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Solution

The fourth proportional to 14,090.31, 21,135.42 and 4,229.58 is: 6,344.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,090.31 : 21,135.42 = 4,229.58 : x
  2. Step 2: Convert to fraction form
    14,090.31/21,135.42 = 4,229.58/x
  3. Step 3: Cross multiply
    14,090.31x = 21,135.42 × 4,229.58
  4. Step 4: Simplify right side
    14,090.31x = 89,393,949.72
  5. Step 5: Solve for x
    x = 89,393,949.72/14,090.31
  6. Step 6: Final answer
    x = 6,344.36

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1.5x scale

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.