Home / 20,982.03-28,954.56-11,550.52

Finding the Fourth Proportional to 20,982.03, 28,954.56 and 11,550.52

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Solution

The fourth proportional to 20,982.03, 28,954.56 and 11,550.52 is: 15,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982.03 : 28,954.56 = 11,550.52 : x
  2. Step 2: Convert to fraction form
    20,982.03/28,954.56 = 11,550.52/x
  3. Step 3: Cross multiply
    20,982.03x = 28,954.56 × 11,550.52
  4. Step 4: Simplify right side
    20,982.03x = 334,440,224.37
  5. Step 5: Solve for x
    x = 334,440,224.37/20,982.03
  6. Step 6: Final answer
    x = 15,939.36

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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.