Home / 21,941.39-32,905.80-7,151.60

Finding the Fourth Proportional to 21,941.39, 32,905.80 and 7,151.60

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Solution

The fourth proportional to 21,941.39, 32,905.80 and 7,151.60 is: 10,725.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,941.39 : 32,905.80 = 7,151.60 : x
  2. Step 2: Convert to fraction form
    21,941.39/32,905.80 = 7,151.60/x
  3. Step 3: Cross multiply
    21,941.39x = 32,905.80 × 7,151.60
  4. Step 4: Simplify right side
    21,941.39x = 235,328,954.75
  5. Step 5: Solve for x
    x = 235,328,954.75/21,941.39
  6. Step 6: Final answer
    x = 10,725.35

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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.