Home / 21,530.83-32,308.77-9,049.90

Finding the Fourth Proportional to 21,530.83, 32,308.77 and 9,049.90

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Solution

The fourth proportional to 21,530.83, 32,308.77 and 9,049.90 is: 13,580.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,530.83 : 32,308.77 = 9,049.90 : x
  2. Step 2: Convert to fraction form
    21,530.83/32,308.77 = 9,049.90/x
  3. Step 3: Cross multiply
    21,530.83x = 32,308.77 × 9,049.90
  4. Step 4: Simplify right side
    21,530.83x = 292,391,137.62
  5. Step 5: Solve for x
    x = 292,391,137.62/21,530.83
  6. Step 6: Final answer
    x = 13,580.11

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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.