Home / 19,913.82-27,480.46-10,961.32

Finding the Fourth Proportional to 19,913.82, 27,480.46 and 10,961.32

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Solution

The fourth proportional to 19,913.82, 27,480.46 and 10,961.32 is: 15,126.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,913.82 : 27,480.46 = 10,961.32 : x
  2. Step 2: Convert to fraction form
    19,913.82/27,480.46 = 10,961.32/x
  3. Step 3: Cross multiply
    19,913.82x = 27,480.46 × 10,961.32
  4. Step 4: Simplify right side
    19,913.82x = 301,222,115.81
  5. Step 5: Solve for x
    x = 301,222,115.81/19,913.82
  6. Step 6: Final answer
    x = 15,126.28

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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.