Home / 22,122.78-33,014.28-19,758.09

Finding the Fourth Proportional to 22,122.78, 33,014.28 and 19,758.09

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Solution

The fourth proportional to 22,122.78, 33,014.28 and 19,758.09 is: 29,485.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,122.78 : 33,014.28 = 19,758.09 : x
  2. Step 2: Convert to fraction form
    22,122.78/33,014.28 = 19,758.09/x
  3. Step 3: Cross multiply
    22,122.78x = 33,014.28 × 19,758.09
  4. Step 4: Simplify right side
    22,122.78x = 652,299,115.53
  5. Step 5: Solve for x
    x = 652,299,115.53/22,122.78
  6. Step 6: Final answer
    x = 29,485.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.