Home / 19,928.53-27,501.80-10,976.41

Finding the Fourth Proportional to 19,928.53, 27,501.80 and 10,976.41

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Solution

The fourth proportional to 19,928.53, 27,501.80 and 10,976.41 is: 15,147.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.53 : 27,501.80 = 10,976.41 : x
  2. Step 2: Convert to fraction form
    19,928.53/27,501.80 = 10,976.41/x
  3. Step 3: Cross multiply
    19,928.53x = 27,501.80 × 10,976.41
  4. Step 4: Simplify right side
    19,928.53x = 301,871,032.54
  5. Step 5: Solve for x
    x = 301,871,032.54/19,928.53
  6. Step 6: Final answer
    x = 15,147.68

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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.