Home / 19,155.69-26,416.83-15,186.29

Finding the Fourth Proportional to 19,155.69, 26,416.83 and 15,186.29

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Solution

The fourth proportional to 19,155.69, 26,416.83 and 15,186.29 is: 20,942.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155.69 : 26,416.83 = 15,186.29 : x
  2. Step 2: Convert to fraction form
    19,155.69/26,416.83 = 15,186.29/x
  3. Step 3: Cross multiply
    19,155.69x = 26,416.83 × 15,186.29
  4. Step 4: Simplify right side
    19,155.69x = 401,173,566.13
  5. Step 5: Solve for x
    x = 401,173,566.13/19,155.69
  6. Step 6: Final answer
    x = 20,942.79

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Half scale
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Double scale
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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.