Home / 21,863.10-32,799.50-6,279.50

Finding the Fourth Proportional to 21,863.10, 32,799.50 and 6,279.50

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Solution

The fourth proportional to 21,863.10, 32,799.50 and 6,279.50 is: 9,420.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,863.10 : 32,799.50 = 6,279.50 : x
  2. Step 2: Convert to fraction form
    21,863.10/32,799.50 = 6,279.50/x
  3. Step 3: Cross multiply
    21,863.10x = 32,799.50 × 6,279.50
  4. Step 4: Simplify right side
    21,863.10x = 205,964,460.25
  5. Step 5: Solve for x
    x = 205,964,460.25/21,863.10
  6. Step 6: Final answer
    x = 9,420.64

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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.