Home / 28,922.20-43,418.40-18,392.20

Finding the Fourth Proportional to 28,922.20, 43,418.40 and 18,392.20

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Solution

The fourth proportional to 28,922.20, 43,418.40 and 18,392.20 is: 27,610.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,922.20 : 43,418.40 = 18,392.20 : x
  2. Step 2: Convert to fraction form
    28,922.20/43,418.40 = 18,392.20/x
  3. Step 3: Cross multiply
    28,922.20x = 43,418.40 × 18,392.20
  4. Step 4: Simplify right side
    28,922.20x = 798,559,896.48
  5. Step 5: Solve for x
    x = 798,559,896.48/28,922.20
  6. Step 6: Final answer
    x = 27,610.62

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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.