Home / 19,561.40-27,005.10-11,612.60

Finding the Fourth Proportional to 19,561.40, 27,005.10 and 11,612.60

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Solution

The fourth proportional to 19,561.40, 27,005.10 and 11,612.60 is: 16,031.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561.40 : 27,005.10 = 11,612.60 : x
  2. Step 2: Convert to fraction form
    19,561.40/27,005.10 = 11,612.60/x
  3. Step 3: Cross multiply
    19,561.40x = 27,005.10 × 11,612.60
  4. Step 4: Simplify right side
    19,561.40x = 313,599,424.26
  5. Step 5: Solve for x
    x = 313,599,424.26/19,561.40
  6. Step 6: Final answer
    x = 16,031.54

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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.