Home / 20,544.63-28,351.56-11,113.20

Finding the Fourth Proportional to 20,544.63, 28,351.56 and 11,113.20

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Solution

The fourth proportional to 20,544.63, 28,351.56 and 11,113.20 is: 15,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.63 : 28,351.56 = 11,113.20 : x
  2. Step 2: Convert to fraction form
    20,544.63/28,351.56 = 11,113.20/x
  3. Step 3: Cross multiply
    20,544.63x = 28,351.56 × 11,113.20
  4. Step 4: Simplify right side
    20,544.63x = 315,076,556.59
  5. Step 5: Solve for x
    x = 315,076,556.59/20,544.63
  6. Step 6: Final answer
    x = 15,336.20

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Double scale
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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.