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Finding the Fourth Proportional to 28,922.18, 43,391.10 and 9,201.20

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Solution

The fourth proportional to 28,922.18, 43,391.10 and 9,201.20 is: 13,804.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,922.18 : 43,391.10 = 9,201.20 : x
  2. Step 2: Convert to fraction form
    28,922.18/43,391.10 = 9,201.20/x
  3. Step 3: Cross multiply
    28,922.18x = 43,391.10 × 9,201.20
  4. Step 4: Simplify right side
    28,922.18x = 399,250,189.32
  5. Step 5: Solve for x
    x = 399,250,189.32/28,922.18
  6. Step 6: Final answer
    x = 13,804.29

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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.