Home / 25,734.51-38,608.11-18,320.58

Finding the Fourth Proportional to 25,734.51, 38,608.11 and 18,320.58

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Solution

The fourth proportional to 25,734.51, 38,608.11 and 18,320.58 is: 27,485.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,734.51 : 38,608.11 = 18,320.58 : x
  2. Step 2: Convert to fraction form
    25,734.51/38,608.11 = 18,320.58/x
  3. Step 3: Cross multiply
    25,734.51x = 38,608.11 × 18,320.58
  4. Step 4: Simplify right side
    25,734.51x = 707,322,967.90
  5. Step 5: Solve for x
    x = 707,322,967.90/25,734.51
  6. Step 6: Final answer
    x = 27,485.39

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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.