Home / 19,768.72-27,280.59-11,270.57

Finding the Fourth Proportional to 19,768.72, 27,280.59 and 11,270.57

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Solution

The fourth proportional to 19,768.72, 27,280.59 and 11,270.57 is: 15,553.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,768.72 : 27,280.59 = 11,270.57 : x
  2. Step 2: Convert to fraction form
    19,768.72/27,280.59 = 11,270.57/x
  3. Step 3: Cross multiply
    19,768.72x = 27,280.59 × 11,270.57
  4. Step 4: Simplify right side
    19,768.72x = 307,467,799.24
  5. Step 5: Solve for x
    x = 307,467,799.24/19,768.72
  6. Step 6: Final answer
    x = 15,553.25

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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.