Home / 19,030.06-28,544.40-4,989.97

Finding the Fourth Proportional to 19,030.06, 28,544.40 and 4,989.97

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Solution

The fourth proportional to 19,030.06, 28,544.40 and 4,989.97 is: 7,484.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,030.06 : 28,544.40 = 4,989.97 : x
  2. Step 2: Convert to fraction form
    19,030.06/28,544.40 = 4,989.97/x
  3. Step 3: Cross multiply
    19,030.06x = 28,544.40 × 4,989.97
  4. Step 4: Simplify right side
    19,030.06x = 142,435,735.35
  5. Step 5: Solve for x
    x = 142,435,735.35/19,030.06
  6. Step 6: Final answer
    x = 7,484.78

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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.