Home / 20,647.40-28,490.82-17,096.36

Finding the Fourth Proportional to 20,647.40, 28,490.82 and 17,096.36

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Solution

The fourth proportional to 20,647.40, 28,490.82 and 17,096.36 is: 23,590.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647.40 : 28,490.82 = 17,096.36 : x
  2. Step 2: Convert to fraction form
    20,647.40/28,490.82 = 17,096.36/x
  3. Step 3: Cross multiply
    20,647.40x = 28,490.82 × 17,096.36
  4. Step 4: Simplify right side
    20,647.40x = 487,089,315.42
  5. Step 5: Solve for x
    x = 487,089,315.42/20,647.40
  6. Step 6: Final answer
    x = 23,590.83

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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.