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Finding the Fourth Proportional to 21,735.78, 32,606.40 and 6,153.40

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Solution

The fourth proportional to 21,735.78, 32,606.40 and 6,153.40 is: 9,230.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,735.78 : 32,606.40 = 6,153.40 : x
  2. Step 2: Convert to fraction form
    21,735.78/32,606.40 = 6,153.40/x
  3. Step 3: Cross multiply
    21,735.78x = 32,606.40 × 6,153.40
  4. Step 4: Simplify right side
    21,735.78x = 200,640,221.76
  5. Step 5: Solve for x
    x = 200,640,221.76/21,735.78
  6. Step 6: Final answer
    x = 9,230.87

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1.5x scale

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.