Home / 40,154.73-55,439.52-25,821

Finding the Fourth Proportional to 40,154.73, 55,439.52 and 25,821

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Solution

The fourth proportional to 40,154.73, 55,439.52 and 25,821 is: 35,649.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,154.73 : 55,439.52 = 25,821 : x
  2. Step 2: Convert to fraction form
    40,154.73/55,439.52 = 25,821/x
  3. Step 3: Cross multiply
    40,154.73x = 55,439.52 × 25,821
  4. Step 4: Simplify right side
    40,154.73x = 1,431,503,845.92
  5. Step 5: Solve for x
    x = 1,431,503,845.92/40,154.73
  6. Step 6: Final answer
    x = 35,649.69

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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.