Home / 20,183.23-30,264.72-12,802.51

Finding the Fourth Proportional to 20,183.23, 30,264.72 and 12,802.51

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Solution

The fourth proportional to 20,183.23, 30,264.72 and 12,802.51 is: 19,197.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,183.23 : 30,264.72 = 12,802.51 : x
  2. Step 2: Convert to fraction form
    20,183.23/30,264.72 = 12,802.51/x
  3. Step 3: Cross multiply
    20,183.23x = 30,264.72 × 12,802.51
  4. Step 4: Simplify right side
    20,183.23x = 387,464,380.45
  5. Step 5: Solve for x
    x = 387,464,380.45/20,183.23
  6. Step 6: Final answer
    x = 19,197.34

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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.