Home / 19,988.05-27,583.61-11,035.39

Finding the Fourth Proportional to 19,988.05, 27,583.61 and 11,035.39

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Solution

The fourth proportional to 19,988.05, 27,583.61 and 11,035.39 is: 15,228.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.05 : 27,583.61 = 11,035.39 : x
  2. Step 2: Convert to fraction form
    19,988.05/27,583.61 = 11,035.39/x
  3. Step 3: Cross multiply
    19,988.05x = 27,583.61 × 11,035.39
  4. Step 4: Simplify right side
    19,988.05x = 304,395,893.96
  5. Step 5: Solve for x
    x = 304,395,893.96/19,988.05
  6. Step 6: Final answer
    x = 15,228.89

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1.5x scale

Why These Related Problems?

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