Home / 31,563.32-43,561.26-18,134.55

Finding the Fourth Proportional to 31,563.32, 43,561.26 and 18,134.55

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Solution

The fourth proportional to 31,563.32, 43,561.26 and 18,134.55 is: 25,027.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,563.32 : 43,561.26 = 18,134.55 : x
  2. Step 2: Convert to fraction form
    31,563.32/43,561.26 = 18,134.55/x
  3. Step 3: Cross multiply
    31,563.32x = 43,561.26 × 18,134.55
  4. Step 4: Simplify right side
    31,563.32x = 789,963,847.53
  5. Step 5: Solve for x
    x = 789,963,847.53/31,563.32
  6. Step 6: Final answer
    x = 25,027.91

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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.