Home / 20,026.98-27,605.39-15,771.29

Finding the Fourth Proportional to 20,026.98, 27,605.39 and 15,771.29

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Solution

The fourth proportional to 20,026.98, 27,605.39 and 15,771.29 is: 21,739.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,026.98 : 27,605.39 = 15,771.29 : x
  2. Step 2: Convert to fraction form
    20,026.98/27,605.39 = 15,771.29/x
  3. Step 3: Cross multiply
    20,026.98x = 27,605.39 × 15,771.29
  4. Step 4: Simplify right side
    20,026.98x = 435,372,394.37
  5. Step 5: Solve for x
    x = 435,372,394.37/20,026.98
  6. Step 6: Final answer
    x = 21,739.29

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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.