Home / 19,478.21-26,880.45-11,924.39

Finding the Fourth Proportional to 19,478.21, 26,880.45 and 11,924.39

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Solution

The fourth proportional to 19,478.21, 26,880.45 and 11,924.39 is: 16,455.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,478.21 : 26,880.45 = 11,924.39 : x
  2. Step 2: Convert to fraction form
    19,478.21/26,880.45 = 11,924.39/x
  3. Step 3: Cross multiply
    19,478.21x = 26,880.45 × 11,924.39
  4. Step 4: Simplify right side
    19,478.21x = 320,532,991.66
  5. Step 5: Solve for x
    x = 320,532,991.66/19,478.21
  6. Step 6: Final answer
    x = 16,455.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.