Home / 34,168.44-47,144.40-20,739.36

Finding the Fourth Proportional to 34,168.44, 47,144.40 and 20,739.36

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Solution

The fourth proportional to 34,168.44, 47,144.40 and 20,739.36 is: 28,615.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,168.44 : 47,144.40 = 20,739.36 : x
  2. Step 2: Convert to fraction form
    34,168.44/47,144.40 = 20,739.36/x
  3. Step 3: Cross multiply
    34,168.44x = 47,144.40 × 20,739.36
  4. Step 4: Simplify right side
    34,168.44x = 977,744,683.58
  5. Step 5: Solve for x
    x = 977,744,683.58/34,168.44
  6. Step 6: Final answer
    x = 28,615.43

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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.