Home / 25,815.25-38,718.24-6,840.01

Finding the Fourth Proportional to 25,815.25, 38,718.24 and 6,840.01

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Solution

The fourth proportional to 25,815.25, 38,718.24 and 6,840.01 is: 10,258.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,815.25 : 38,718.24 = 6,840.01 : x
  2. Step 2: Convert to fraction form
    25,815.25/38,718.24 = 6,840.01/x
  3. Step 3: Cross multiply
    25,815.25x = 38,718.24 × 6,840.01
  4. Step 4: Simplify right side
    25,815.25x = 264,833,148.78
  5. Step 5: Solve for x
    x = 264,833,148.78/25,815.25
  6. Step 6: Final answer
    x = 10,258.79

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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.