Home / 21,582.08-29,787.72-12,634.28

Finding the Fourth Proportional to 21,582.08, 29,787.72 and 12,634.28

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Solution

The fourth proportional to 21,582.08, 29,787.72 and 12,634.28 is: 17,437.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,582.08 : 29,787.72 = 12,634.28 : x
  2. Step 2: Convert to fraction form
    21,582.08/29,787.72 = 12,634.28/x
  3. Step 3: Cross multiply
    21,582.08x = 29,787.72 × 12,634.28
  4. Step 4: Simplify right side
    21,582.08x = 376,346,395.04
  5. Step 5: Solve for x
    x = 376,346,395.04/21,582.08
  6. Step 6: Final answer
    x = 17,437.91

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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.