Home / 28,469.84-39,268.62-19,518.14

Finding the Fourth Proportional to 28,469.84, 39,268.62 and 19,518.14

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Solution

The fourth proportional to 28,469.84, 39,268.62 and 19,518.14 is: 26,921.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,469.84 : 39,268.62 = 19,518.14 : x
  2. Step 2: Convert to fraction form
    28,469.84/39,268.62 = 19,518.14/x
  3. Step 3: Cross multiply
    28,469.84x = 39,268.62 × 19,518.14
  4. Step 4: Simplify right side
    28,469.84x = 766,450,422.77
  5. Step 5: Solve for x
    x = 766,450,422.77/28,469.84
  6. Step 6: Final answer
    x = 26,921.49

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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.