Home / 30,339.36-45,284.37-28,469.48

Finding the Fourth Proportional to 30,339.36, 45,284.37 and 28,469.48

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Solution

The fourth proportional to 30,339.36, 45,284.37 and 28,469.48 is: 42,493.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,339.36 : 45,284.37 = 28,469.48 : x
  2. Step 2: Convert to fraction form
    30,339.36/45,284.37 = 28,469.48/x
  3. Step 3: Cross multiply
    30,339.36x = 45,284.37 × 28,469.48
  4. Step 4: Simplify right side
    30,339.36x = 1,289,222,132.85
  5. Step 5: Solve for x
    x = 1,289,222,132.85/30,339.36
  6. Step 6: Final answer
    x = 42,493.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.