Home / 20,222.36-30,315.06-17,122.34

Finding the Fourth Proportional to 20,222.36, 30,315.06 and 17,122.34

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Solution

The fourth proportional to 20,222.36, 30,315.06 and 17,122.34 is: 25,667.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,222.36 : 30,315.06 = 17,122.34 : x
  2. Step 2: Convert to fraction form
    20,222.36/30,315.06 = 17,122.34/x
  3. Step 3: Cross multiply
    20,222.36x = 30,315.06 × 17,122.34
  4. Step 4: Simplify right side
    20,222.36x = 519,064,764.44
  5. Step 5: Solve for x
    x = 519,064,764.44/20,222.36
  6. Step 6: Final answer
    x = 25,667.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.