Home / 19,238.87-28,858.12-10,358.35

Finding the Fourth Proportional to 19,238.87, 28,858.12 and 10,358.35

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Solution

The fourth proportional to 19,238.87, 28,858.12 and 10,358.35 is: 15,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,238.87 : 28,858.12 = 10,358.35 : x
  2. Step 2: Convert to fraction form
    19,238.87/28,858.12 = 10,358.35/x
  3. Step 3: Cross multiply
    19,238.87x = 28,858.12 × 10,358.35
  4. Step 4: Simplify right side
    19,238.87x = 298,922,507.30
  5. Step 5: Solve for x
    x = 298,922,507.30/19,238.87
  6. Step 6: Final answer
    x = 15,537.43

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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.