Home / 40,138.54-60,205.38-12,436.54

Finding the Fourth Proportional to 40,138.54, 60,205.38 and 12,436.54

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Solution

The fourth proportional to 40,138.54, 60,205.38 and 12,436.54 is: 18,654.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,138.54 : 60,205.38 = 12,436.54 : x
  2. Step 2: Convert to fraction form
    40,138.54/60,205.38 = 12,436.54/x
  3. Step 3: Cross multiply
    40,138.54x = 60,205.38 × 12,436.54
  4. Step 4: Simplify right side
    40,138.54x = 748,746,616.59
  5. Step 5: Solve for x
    x = 748,746,616.59/40,138.54
  6. Step 6: Final answer
    x = 18,654.06

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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.