Home / 20,150.10-27,807.26-11,075.38

Finding the Fourth Proportional to 20,150.10, 27,807.26 and 11,075.38

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Solution

The fourth proportional to 20,150.10, 27,807.26 and 11,075.38 is: 15,284.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.10 : 27,807.26 = 11,075.38 : x
  2. Step 2: Convert to fraction form
    20,150.10/27,807.26 = 11,075.38/x
  3. Step 3: Cross multiply
    20,150.10x = 27,807.26 × 11,075.38
  4. Step 4: Simplify right side
    20,150.10x = 307,975,971.26
  5. Step 5: Solve for x
    x = 307,975,971.26/20,150.10
  6. Step 6: Final answer
    x = 15,284.09

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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.