Home / 19,238.51-28,840.66-10,358.69

Finding the Fourth Proportional to 19,238.51, 28,840.66 and 10,358.69

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Solution

The fourth proportional to 19,238.51, 28,840.66 and 10,358.69 is: 15,528.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,238.51 : 28,840.66 = 10,358.69 : x
  2. Step 2: Convert to fraction form
    19,238.51/28,840.66 = 10,358.69/x
  3. Step 3: Cross multiply
    19,238.51x = 28,840.66 × 10,358.69
  4. Step 4: Simplify right side
    19,238.51x = 298,751,286.24
  5. Step 5: Solve for x
    x = 298,751,286.24/19,238.51
  6. Step 6: Final answer
    x = 15,528.81

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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.