Home / 30,183.03-45,208.53-21,391.29

Finding the Fourth Proportional to 30,183.03, 45,208.53 and 21,391.29

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Solution

The fourth proportional to 30,183.03, 45,208.53 and 21,391.29 is: 32,040.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,183.03 : 45,208.53 = 21,391.29 : x
  2. Step 2: Convert to fraction form
    30,183.03/45,208.53 = 21,391.29/x
  3. Step 3: Cross multiply
    30,183.03x = 45,208.53 × 21,391.29
  4. Step 4: Simplify right side
    30,183.03x = 967,068,775.70
  5. Step 5: Solve for x
    x = 967,068,775.70/30,183.03
  6. Step 6: Final answer
    x = 32,040.15

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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.