Home / 20,676.18-28,533.33-12,291.06

Finding the Fourth Proportional to 20,676.18, 28,533.33 and 12,291.06

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Solution

The fourth proportional to 20,676.18, 28,533.33 and 12,291.06 is: 16,961.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.18 : 28,533.33 = 12,291.06 : x
  2. Step 2: Convert to fraction form
    20,676.18/28,533.33 = 12,291.06/x
  3. Step 3: Cross multiply
    20,676.18x = 28,533.33 × 12,291.06
  4. Step 4: Simplify right side
    20,676.18x = 350,704,871.03
  5. Step 5: Solve for x
    x = 350,704,871.03/20,676.18
  6. Step 6: Final answer
    x = 16,961.78

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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.