Home / 13,710.36-20,571.77-13,489.23

Finding the Fourth Proportional to 13,710.36, 20,571.77 and 13,489.23

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Solution

The fourth proportional to 13,710.36, 20,571.77 and 13,489.23 is: 20,239.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710.36 : 20,571.77 = 13,489.23 : x
  2. Step 2: Convert to fraction form
    13,710.36/20,571.77 = 13,489.23/x
  3. Step 3: Cross multiply
    13,710.36x = 20,571.77 × 13,489.23
  4. Step 4: Simplify right side
    13,710.36x = 277,497,447.90
  5. Step 5: Solve for x
    x = 277,497,447.90/13,710.36
  6. Step 6: Final answer
    x = 20,239.98

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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.