Home / 30,240.70-45,355.12-28,740.44

Finding the Fourth Proportional to 30,240.70, 45,355.12 and 28,740.44

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Solution

The fourth proportional to 30,240.70, 45,355.12 and 28,740.44 is: 43,105.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,240.70 : 45,355.12 = 28,740.44 : x
  2. Step 2: Convert to fraction form
    30,240.70/45,355.12 = 28,740.44/x
  3. Step 3: Cross multiply
    30,240.70x = 45,355.12 × 28,740.44
  4. Step 4: Simplify right side
    30,240.70x = 1,303,526,105.05
  5. Step 5: Solve for x
    x = 1,303,526,105.05/30,240.70
  6. Step 6: Final answer
    x = 43,105.02

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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.