Home / 21,346.44-32,028.90-8,869.20

Finding the Fourth Proportional to 21,346.44, 32,028.90 and 8,869.20

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Solution

The fourth proportional to 21,346.44, 32,028.90 and 8,869.20 is: 13,307.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,346.44 : 32,028.90 = 8,869.20 : x
  2. Step 2: Convert to fraction form
    21,346.44/32,028.90 = 8,869.20/x
  3. Step 3: Cross multiply
    21,346.44x = 32,028.90 × 8,869.20
  4. Step 4: Simplify right side
    21,346.44x = 284,070,719.88
  5. Step 5: Solve for x
    x = 284,070,719.88/21,346.44
  6. Step 6: Final answer
    x = 13,307.64

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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.