Home / 28,566-39,438.36-18,647.28

Finding the Fourth Proportional to 28,566, 39,438.36 and 18,647.28

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Solution

The fourth proportional to 28,566, 39,438.36 and 18,647.28 is: 25,744.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,566 : 39,438.36 = 18,647.28 : x
  2. Step 2: Convert to fraction form
    28,566/39,438.36 = 18,647.28/x
  3. Step 3: Cross multiply
    28,566x = 39,438.36 × 18,647.28
  4. Step 4: Simplify right side
    28,566x = 735,418,141.66
  5. Step 5: Solve for x
    x = 735,418,141.66/28,566
  6. Step 6: Final answer
    x = 25,744.53

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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.