Home / 28,271.35-39,012.94-15,522.05

Finding the Fourth Proportional to 28,271.35, 39,012.94 and 15,522.05

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Solution

The fourth proportional to 28,271.35, 39,012.94 and 15,522.05 is: 21,419.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,271.35 : 39,012.94 = 15,522.05 : x
  2. Step 2: Convert to fraction form
    28,271.35/39,012.94 = 15,522.05/x
  3. Step 3: Cross multiply
    28,271.35x = 39,012.94 × 15,522.05
  4. Step 4: Simplify right side
    28,271.35x = 605,560,702.81
  5. Step 5: Solve for x
    x = 605,560,702.81/28,271.35
  6. Step 6: Final answer
    x = 21,419.59

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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.