Home / 21,640.72-32,461.08-20,241.04

Finding the Fourth Proportional to 21,640.72, 32,461.08 and 20,241.04

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Solution

The fourth proportional to 21,640.72, 32,461.08 and 20,241.04 is: 30,361.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,640.72 : 32,461.08 = 20,241.04 : x
  2. Step 2: Convert to fraction form
    21,640.72/32,461.08 = 20,241.04/x
  3. Step 3: Cross multiply
    21,640.72x = 32,461.08 × 20,241.04
  4. Step 4: Simplify right side
    21,640.72x = 657,046,018.72
  5. Step 5: Solve for x
    x = 657,046,018.72/21,640.72
  6. Step 6: Final answer
    x = 30,361.56

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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.