Home / 28,757.12-43,135.68-18,237.64

Finding the Fourth Proportional to 28,757.12, 43,135.68 and 18,237.64

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Solution

The fourth proportional to 28,757.12, 43,135.68 and 18,237.64 is: 27,356.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757.12 : 43,135.68 = 18,237.64 : x
  2. Step 2: Convert to fraction form
    28,757.12/43,135.68 = 18,237.64/x
  3. Step 3: Cross multiply
    28,757.12x = 43,135.68 × 18,237.64
  4. Step 4: Simplify right side
    28,757.12x = 786,693,003.00
  5. Step 5: Solve for x
    x = 786,693,003.00/28,757.12
  6. Step 6: Final answer
    x = 27,356.46

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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.