Home / 30,239.70-45,353.62-28,739.44

Finding the Fourth Proportional to 30,239.70, 45,353.62 and 28,739.44

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Solution

The fourth proportional to 30,239.70, 45,353.62 and 28,739.44 is: 43,103.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239.70 : 45,353.62 = 28,739.44 : x
  2. Step 2: Convert to fraction form
    30,239.70/45,353.62 = 28,739.44/x
  3. Step 3: Cross multiply
    30,239.70x = 45,353.62 × 28,739.44
  4. Step 4: Simplify right side
    30,239.70x = 1,303,437,733.39
  5. Step 5: Solve for x
    x = 1,303,437,733.39/30,239.70
  6. Step 6: Final answer
    x = 43,103.53

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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.