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Finding the Fourth Proportional to 25,683.96, 38,488.05 and 11,648.28

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Solution

The fourth proportional to 25,683.96, 38,488.05 and 11,648.28 is: 17,455.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,683.96 : 38,488.05 = 11,648.28 : x
  2. Step 2: Convert to fraction form
    25,683.96/38,488.05 = 11,648.28/x
  3. Step 3: Cross multiply
    25,683.96x = 38,488.05 × 11,648.28
  4. Step 4: Simplify right side
    25,683.96x = 448,319,583.05
  5. Step 5: Solve for x
    x = 448,319,583.05/25,683.96
  6. Step 6: Final answer
    x = 17,455.24

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.