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Finding the Fourth Proportional to 35,305.25, 48,725.57 and 20,401.25

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Solution

The fourth proportional to 35,305.25, 48,725.57 and 20,401.25 is: 28,156.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,305.25 : 48,725.57 = 20,401.25 : x
  2. Step 2: Convert to fraction form
    35,305.25/48,725.57 = 20,401.25/x
  3. Step 3: Cross multiply
    35,305.25x = 48,725.57 × 20,401.25
  4. Step 4: Simplify right side
    35,305.25x = 994,062,432.96
  5. Step 5: Solve for x
    x = 994,062,432.96/35,305.25
  6. Step 6: Final answer
    x = 28,156.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.