Home / 20,796.98-28,700.22-11,365.34

Finding the Fourth Proportional to 20,796.98, 28,700.22 and 11,365.34

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Solution

The fourth proportional to 20,796.98, 28,700.22 and 11,365.34 is: 15,684.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796.98 : 28,700.22 = 11,365.34 : x
  2. Step 2: Convert to fraction form
    20,796.98/28,700.22 = 11,365.34/x
  3. Step 3: Cross multiply
    20,796.98x = 28,700.22 × 11,365.34
  4. Step 4: Simplify right side
    20,796.98x = 326,187,758.37
  5. Step 5: Solve for x
    x = 326,187,758.37/20,796.98
  6. Step 6: Final answer
    x = 15,684.38

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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.