Home / 19,118.54-28,631.67-11,497.91

Finding the Fourth Proportional to 19,118.54, 28,631.67 and 11,497.91

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Solution

The fourth proportional to 19,118.54, 28,631.67 and 11,497.91 is: 17,219.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118.54 : 28,631.67 = 11,497.91 : x
  2. Step 2: Convert to fraction form
    19,118.54/28,631.67 = 11,497.91/x
  3. Step 3: Cross multiply
    19,118.54x = 28,631.67 × 11,497.91
  4. Step 4: Simplify right side
    19,118.54x = 329,204,307.32
  5. Step 5: Solve for x
    x = 329,204,307.32/19,118.54
  6. Step 6: Final answer
    x = 17,219.11

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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.