Home / 28,763.92-43,137.96-18,218.12

Finding the Fourth Proportional to 28,763.92, 43,137.96 and 18,218.12

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Solution

The fourth proportional to 28,763.92, 43,137.96 and 18,218.12 is: 27,322.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,763.92 : 43,137.96 = 18,218.12 : x
  2. Step 2: Convert to fraction form
    28,763.92/43,137.96 = 18,218.12/x
  3. Step 3: Cross multiply
    28,763.92x = 43,137.96 × 18,218.12
  4. Step 4: Simplify right side
    28,763.92x = 785,892,531.84
  5. Step 5: Solve for x
    x = 785,892,531.84/28,763.92
  6. Step 6: Final answer
    x = 27,322.16

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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.