Home / 21,611.20-32,189.52-20,600

Finding the Fourth Proportional to 21,611.20, 32,189.52 and 20,600

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Solution

The fourth proportional to 21,611.20, 32,189.52 and 20,600 is: 30,683.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,611.20 : 32,189.52 = 20,600 : x
  2. Step 2: Convert to fraction form
    21,611.20/32,189.52 = 20,600/x
  3. Step 3: Cross multiply
    21,611.20x = 32,189.52 × 20,600
  4. Step 4: Simplify right side
    21,611.20x = 663,104,112
  5. Step 5: Solve for x
    x = 663,104,112/21,611.20
  6. Step 6: Final answer
    x = 30,683.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.