Home / 13,571.13-20,223.42-13,125.18

Finding the Fourth Proportional to 13,571.13, 20,223.42 and 13,125.18

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Solution

The fourth proportional to 13,571.13, 20,223.42 and 13,125.18 is: 19,558.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.13 : 20,223.42 = 13,125.18 : x
  2. Step 2: Convert to fraction form
    13,571.13/20,223.42 = 13,125.18/x
  3. Step 3: Cross multiply
    13,571.13x = 20,223.42 × 13,125.18
  4. Step 4: Simplify right side
    13,571.13x = 265,436,027.72
  5. Step 5: Solve for x
    x = 265,436,027.72/13,571.13
  6. Step 6: Final answer
    x = 19,558.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.