Home / 19,871.94-27,422.73-10,919.44

Finding the Fourth Proportional to 19,871.94, 27,422.73 and 10,919.44

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Solution

The fourth proportional to 19,871.94, 27,422.73 and 10,919.44 is: 15,068.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,871.94 : 27,422.73 = 10,919.44 : x
  2. Step 2: Convert to fraction form
    19,871.94/27,422.73 = 10,919.44/x
  3. Step 3: Cross multiply
    19,871.94x = 27,422.73 × 10,919.44
  4. Step 4: Simplify right side
    19,871.94x = 299,440,858.44
  5. Step 5: Solve for x
    x = 299,440,858.44/19,871.94
  6. Step 6: Final answer
    x = 15,068.53

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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.