Home / 21,389.52-32,089.14-8,066.64

Finding the Fourth Proportional to 21,389.52, 32,089.14 and 8,066.64

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Solution

The fourth proportional to 21,389.52, 32,089.14 and 8,066.64 is: 12,101.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,389.52 : 32,089.14 = 8,066.64 : x
  2. Step 2: Convert to fraction form
    21,389.52/32,089.14 = 8,066.64/x
  3. Step 3: Cross multiply
    21,389.52x = 32,089.14 × 8,066.64
  4. Step 4: Simplify right side
    21,389.52x = 258,851,540.29
  5. Step 5: Solve for x
    x = 258,851,540.29/21,389.52
  6. Step 6: Final answer
    x = 12,101.79

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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.