Home / 19,991.33-27,587.91-11,038.76

Finding the Fourth Proportional to 19,991.33, 27,587.91 and 11,038.76

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Solution

The fourth proportional to 19,991.33, 27,587.91 and 11,038.76 is: 15,233.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.33 : 27,587.91 = 11,038.76 : x
  2. Step 2: Convert to fraction form
    19,991.33/27,587.91 = 11,038.76/x
  3. Step 3: Cross multiply
    19,991.33x = 27,587.91 × 11,038.76
  4. Step 4: Simplify right side
    19,991.33x = 304,536,179.45
  5. Step 5: Solve for x
    x = 304,536,179.45/19,991.33
  6. Step 6: Final answer
    x = 15,233.42

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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.