Home / 19,140.00-28,709.94-4,908.47

Finding the Fourth Proportional to 19,140.00, 28,709.94 and 4,908.47

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Solution

The fourth proportional to 19,140.00, 28,709.94 and 4,908.47 is: 7,362.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.00 : 28,709.94 = 4,908.47 : x
  2. Step 2: Convert to fraction form
    19,140.00/28,709.94 = 4,908.47/x
  3. Step 3: Cross multiply
    19,140.00x = 28,709.94 × 4,908.47
  4. Step 4: Simplify right side
    19,140.00x = 140,921,735.64
  5. Step 5: Solve for x
    x = 140,921,735.64/19,140.00
  6. Step 6: Final answer
    x = 7,362.68

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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.