Home / 21,445.76-32,181.26-8,964.81

Finding the Fourth Proportional to 21,445.76, 32,181.26 and 8,964.81

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Solution

The fourth proportional to 21,445.76, 32,181.26 and 8,964.81 is: 13,452.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,445.76 : 32,181.26 = 8,964.81 : x
  2. Step 2: Convert to fraction form
    21,445.76/32,181.26 = 8,964.81/x
  3. Step 3: Cross multiply
    21,445.76x = 32,181.26 × 8,964.81
  4. Step 4: Simplify right side
    21,445.76x = 288,498,836.64
  5. Step 5: Solve for x
    x = 288,498,836.64/21,445.76
  6. Step 6: Final answer
    x = 13,452.49

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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.