Home / 20,676.08-28,532.74-11,244.64

Finding the Fourth Proportional to 20,676.08, 28,532.74 and 11,244.64

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Solution

The fourth proportional to 20,676.08, 28,532.74 and 11,244.64 is: 15,517.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.08 : 28,532.74 = 11,244.64 : x
  2. Step 2: Convert to fraction form
    20,676.08/28,532.74 = 11,244.64/x
  3. Step 3: Cross multiply
    20,676.08x = 28,532.74 × 11,244.64
  4. Step 4: Simplify right side
    20,676.08x = 320,840,389.51
  5. Step 5: Solve for x
    x = 320,840,389.51/20,676.08
  6. Step 6: Final answer
    x = 15,517.47

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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.