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Finding the Fourth Proportional to 21,901.52, 32,852.34 and 5,485.52

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Solution

The fourth proportional to 21,901.52, 32,852.34 and 5,485.52 is: 8,228.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,901.52 : 32,852.34 = 5,485.52 : x
  2. Step 2: Convert to fraction form
    21,901.52/32,852.34 = 5,485.52/x
  3. Step 3: Cross multiply
    21,901.52x = 32,852.34 × 5,485.52
  4. Step 4: Simplify right side
    21,901.52x = 180,212,168.12
  5. Step 5: Solve for x
    x = 180,212,168.12/21,901.52
  6. Step 6: Final answer
    x = 8,228.30

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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.