Home / 25,829.80-38,739.30-11,039.20

Finding the Fourth Proportional to 25,829.80, 38,739.30 and 11,039.20

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Solution

The fourth proportional to 25,829.80, 38,739.30 and 11,039.20 is: 16,556.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,829.80 : 38,739.30 = 11,039.20 : x
  2. Step 2: Convert to fraction form
    25,829.80/38,739.30 = 11,039.20/x
  3. Step 3: Cross multiply
    25,829.80x = 38,739.30 × 11,039.20
  4. Step 4: Simplify right side
    25,829.80x = 427,650,880.56
  5. Step 5: Solve for x
    x = 427,650,880.56/25,829.80
  6. Step 6: Final answer
    x = 16,556.49

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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.