Home / 20,195.88-30,309.51-13,999.26

Finding the Fourth Proportional to 20,195.88, 30,309.51 and 13,999.26

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Solution

The fourth proportional to 20,195.88, 30,309.51 and 13,999.26 is: 21,009.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.88 : 30,309.51 = 13,999.26 : x
  2. Step 2: Convert to fraction form
    20,195.88/30,309.51 = 13,999.26/x
  3. Step 3: Cross multiply
    20,195.88x = 30,309.51 × 13,999.26
  4. Step 4: Simplify right side
    20,195.88x = 424,310,710.96
  5. Step 5: Solve for x
    x = 424,310,710.96/20,195.88
  6. Step 6: Final answer
    x = 21,009.77

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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.