Home / 28,377.23-39,163.79-18,301.64

Finding the Fourth Proportional to 28,377.23, 39,163.79 and 18,301.64

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Solution

The fourth proportional to 28,377.23, 39,163.79 and 18,301.64 is: 25,258.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,377.23 : 39,163.79 = 18,301.64 : x
  2. Step 2: Convert to fraction form
    28,377.23/39,163.79 = 18,301.64/x
  3. Step 3: Cross multiply
    28,377.23x = 39,163.79 × 18,301.64
  4. Step 4: Simplify right side
    28,377.23x = 716,761,494.11
  5. Step 5: Solve for x
    x = 716,761,494.11/28,377.23
  6. Step 6: Final answer
    x = 25,258.33

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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.