Home / 20,499.37-28,283.47-11,546.35

Finding the Fourth Proportional to 20,499.37, 28,283.47 and 11,546.35

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Solution

The fourth proportional to 20,499.37, 28,283.47 and 11,546.35 is: 15,930.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,499.37 : 28,283.47 = 11,546.35 : x
  2. Step 2: Convert to fraction form
    20,499.37/28,283.47 = 11,546.35/x
  3. Step 3: Cross multiply
    20,499.37x = 28,283.47 × 11,546.35
  4. Step 4: Simplify right side
    20,499.37x = 326,570,843.83
  5. Step 5: Solve for x
    x = 326,570,843.83/20,499.37
  6. Step 6: Final answer
    x = 15,930.77

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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.