Home / 20,676.40-31,091.40-17,297.20

Finding the Fourth Proportional to 20,676.40, 31,091.40 and 17,297.20

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Solution

The fourth proportional to 20,676.40, 31,091.40 and 17,297.20 is: 26,010.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.40 : 31,091.40 = 17,297.20 : x
  2. Step 2: Convert to fraction form
    20,676.40/31,091.40 = 17,297.20/x
  3. Step 3: Cross multiply
    20,676.40x = 31,091.40 × 17,297.20
  4. Step 4: Simplify right side
    20,676.40x = 537,794,164.08
  5. Step 5: Solve for x
    x = 537,794,164.08/20,676.40
  6. Step 6: Final answer
    x = 26,010.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.