Home / 21,989.94-32,976.68-8,837.84

Finding the Fourth Proportional to 21,989.94, 32,976.68 and 8,837.84

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Solution

The fourth proportional to 21,989.94, 32,976.68 and 8,837.84 is: 13,253.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,989.94 : 32,976.68 = 8,837.84 : x
  2. Step 2: Convert to fraction form
    21,989.94/32,976.68 = 8,837.84/x
  3. Step 3: Cross multiply
    21,989.94x = 32,976.68 × 8,837.84
  4. Step 4: Simplify right side
    21,989.94x = 291,442,621.57
  5. Step 5: Solve for x
    x = 291,442,621.57/21,989.94
  6. Step 6: Final answer
    x = 13,253.45

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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.