Home / 21,989.41-32,975.88-8,837.31

Finding the Fourth Proportional to 21,989.41, 32,975.88 and 8,837.31

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Solution

The fourth proportional to 21,989.41, 32,975.88 and 8,837.31 is: 13,252.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,989.41 : 32,975.88 = 8,837.31 : x
  2. Step 2: Convert to fraction form
    21,989.41/32,975.88 = 8,837.31/x
  3. Step 3: Cross multiply
    21,989.41x = 32,975.88 × 8,837.31
  4. Step 4: Simplify right side
    21,989.41x = 291,418,074.08
  5. Step 5: Solve for x
    x = 291,418,074.08/21,989.41
  6. Step 6: Final answer
    x = 13,252.66

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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.