Home / 28,107.45-38,796.36-18,554.31

Finding the Fourth Proportional to 28,107.45, 38,796.36 and 18,554.31

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Solution

The fourth proportional to 28,107.45, 38,796.36 and 18,554.31 is: 25,610.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,107.45 : 38,796.36 = 18,554.31 : x
  2. Step 2: Convert to fraction form
    28,107.45/38,796.36 = 18,554.31/x
  3. Step 3: Cross multiply
    28,107.45x = 38,796.36 × 18,554.31
  4. Step 4: Simplify right side
    28,107.45x = 719,839,690.31
  5. Step 5: Solve for x
    x = 719,839,690.31/28,107.45
  6. Step 6: Final answer
    x = 25,610.28

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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.