Home / 21,616.31-29,855.12-14,530.43

Finding the Fourth Proportional to 21,616.31, 29,855.12 and 14,530.43

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Solution

The fourth proportional to 21,616.31, 29,855.12 and 14,530.43 is: 20,068.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,616.31 : 29,855.12 = 14,530.43 : x
  2. Step 2: Convert to fraction form
    21,616.31/29,855.12 = 14,530.43/x
  3. Step 3: Cross multiply
    21,616.31x = 29,855.12 × 14,530.43
  4. Step 4: Simplify right side
    21,616.31x = 433,807,733.29
  5. Step 5: Solve for x
    x = 433,807,733.29/21,616.31
  6. Step 6: Final answer
    x = 20,068.54

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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.