Home / 21,635.10-29,851.74-14,080.64

Finding the Fourth Proportional to 21,635.10, 29,851.74 and 14,080.64

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Solution

The fourth proportional to 21,635.10, 29,851.74 and 14,080.64 is: 19,428.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,635.10 : 29,851.74 = 14,080.64 : x
  2. Step 2: Convert to fraction form
    21,635.10/29,851.74 = 14,080.64/x
  3. Step 3: Cross multiply
    21,635.10x = 29,851.74 × 14,080.64
  4. Step 4: Simplify right side
    21,635.10x = 420,331,455.05
  5. Step 5: Solve for x
    x = 420,331,455.05/21,635.10
  6. Step 6: Final answer
    x = 19,428.22

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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.