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Finding the Fourth Proportional to 35,877.49, 53,787.07 and 12,520.33

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Solution

The fourth proportional to 35,877.49, 53,787.07 and 12,520.33 is: 18,770.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,877.49 : 53,787.07 = 12,520.33 : x
  2. Step 2: Convert to fraction form
    35,877.49/53,787.07 = 12,520.33/x
  3. Step 3: Cross multiply
    35,877.49x = 53,787.07 × 12,520.33
  4. Step 4: Simplify right side
    35,877.49x = 673,431,747.32
  5. Step 5: Solve for x
    x = 673,431,747.32/35,877.49
  6. Step 6: Final answer
    x = 18,770.32

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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.