Home / 28,474.44-39,238.68-21,767.64

Finding the Fourth Proportional to 28,474.44, 39,238.68 and 21,767.64

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Solution

The fourth proportional to 28,474.44, 39,238.68 and 21,767.64 is: 29,996.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,474.44 : 39,238.68 = 21,767.64 : x
  2. Step 2: Convert to fraction form
    28,474.44/39,238.68 = 21,767.64/x
  3. Step 3: Cross multiply
    28,474.44x = 39,238.68 × 21,767.64
  4. Step 4: Simplify right side
    28,474.44x = 854,133,460.32
  5. Step 5: Solve for x
    x = 854,133,460.32/28,474.44
  6. Step 6: Final answer
    x = 29,996.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.