Home / 21,982.52-32,973.70-12,116.60

Finding the Fourth Proportional to 21,982.52, 32,973.70 and 12,116.60

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Solution

The fourth proportional to 21,982.52, 32,973.70 and 12,116.60 is: 18,174.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.52 : 32,973.70 = 12,116.60 : x
  2. Step 2: Convert to fraction form
    21,982.52/32,973.70 = 12,116.60/x
  3. Step 3: Cross multiply
    21,982.52x = 32,973.70 × 12,116.60
  4. Step 4: Simplify right side
    21,982.52x = 399,529,133.42
  5. Step 5: Solve for x
    x = 399,529,133.42/21,982.52
  6. Step 6: Final answer
    x = 18,174.86

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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.