Home / 28,523.27-39,361.56-15,777.56

Finding the Fourth Proportional to 28,523.27, 39,361.56 and 15,777.56

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Solution

The fourth proportional to 28,523.27, 39,361.56 and 15,777.56 is: 21,772.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,523.27 : 39,361.56 = 15,777.56 : x
  2. Step 2: Convert to fraction form
    28,523.27/39,361.56 = 15,777.56/x
  3. Step 3: Cross multiply
    28,523.27x = 39,361.56 × 15,777.56
  4. Step 4: Simplify right side
    28,523.27x = 621,029,374.59
  5. Step 5: Solve for x
    x = 621,029,374.59/28,523.27
  6. Step 6: Final answer
    x = 21,772.73

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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.