Home / 28,004.05-38,645.46-15,257.19

Finding the Fourth Proportional to 28,004.05, 38,645.46 and 15,257.19

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Solution

The fourth proportional to 28,004.05, 38,645.46 and 15,257.19 is: 21,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,004.05 : 38,645.46 = 15,257.19 : x
  2. Step 2: Convert to fraction form
    28,004.05/38,645.46 = 15,257.19/x
  3. Step 3: Cross multiply
    28,004.05x = 38,645.46 × 15,257.19
  4. Step 4: Simplify right side
    28,004.05x = 589,621,067.39
  5. Step 5: Solve for x
    x = 589,621,067.39/28,004.05
  6. Step 6: Final answer
    x = 21,054.85

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Half scale
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Double scale
Find fourth proportional to 28,005.05, 38,646.84 and 15,258.19
Similar ratio
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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.