Home / 25,858.27-38,789.63-7,138.30

Finding the Fourth Proportional to 25,858.27, 38,789.63 and 7,138.30

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Solution

The fourth proportional to 25,858.27, 38,789.63 and 7,138.30 is: 10,708.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,858.27 : 38,789.63 = 7,138.30 : x
  2. Step 2: Convert to fraction form
    25,858.27/38,789.63 = 7,138.30/x
  3. Step 3: Cross multiply
    25,858.27x = 38,789.63 × 7,138.30
  4. Step 4: Simplify right side
    25,858.27x = 276,892,015.83
  5. Step 5: Solve for x
    x = 276,892,015.83/25,858.27
  6. Step 6: Final answer
    x = 10,708.06

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1.5x scale

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.