Home / 27,163.89-40,737.93-10,520.21

Finding the Fourth Proportional to 27,163.89, 40,737.93 and 10,520.21

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Solution

The fourth proportional to 27,163.89, 40,737.93 and 10,520.21 is: 15,777.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,163.89 : 40,737.93 = 10,520.21 : x
  2. Step 2: Convert to fraction form
    27,163.89/40,737.93 = 10,520.21/x
  3. Step 3: Cross multiply
    27,163.89x = 40,737.93 × 10,520.21
  4. Step 4: Simplify right side
    27,163.89x = 428,571,527.64
  5. Step 5: Solve for x
    x = 428,571,527.64/27,163.89
  6. Step 6: Final answer
    x = 15,777.25

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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.