Home / 20,625.36-28,391.09-17,801.70

Finding the Fourth Proportional to 20,625.36, 28,391.09 and 17,801.70

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Solution

The fourth proportional to 20,625.36, 28,391.09 and 17,801.70 is: 24,504.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,625.36 : 28,391.09 = 17,801.70 : x
  2. Step 2: Convert to fraction form
    20,625.36/28,391.09 = 17,801.70/x
  3. Step 3: Cross multiply
    20,625.36x = 28,391.09 × 17,801.70
  4. Step 4: Simplify right side
    20,625.36x = 505,409,577.84
  5. Step 5: Solve for x
    x = 505,409,577.84/20,625.36
  6. Step 6: Final answer
    x = 24,504.28

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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.