Home / 21,274.05-31,915.68-6,482.58

Finding the Fourth Proportional to 21,274.05, 31,915.68 and 6,482.58

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Solution

The fourth proportional to 21,274.05, 31,915.68 and 6,482.58 is: 9,725.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274.05 : 31,915.68 = 6,482.58 : x
  2. Step 2: Convert to fraction form
    21,274.05/31,915.68 = 6,482.58/x
  3. Step 3: Cross multiply
    21,274.05x = 31,915.68 × 6,482.58
  4. Step 4: Simplify right side
    21,274.05x = 206,895,948.85
  5. Step 5: Solve for x
    x = 206,895,948.85/21,274.05
  6. Step 6: Final answer
    x = 9,725.27

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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.