Home / 28,647.97-39,536.58-15,902.35

Finding the Fourth Proportional to 28,647.97, 39,536.58 and 15,902.35

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Solution

The fourth proportional to 28,647.97, 39,536.58 and 15,902.35 is: 21,946.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.97 : 39,536.58 = 15,902.35 : x
  2. Step 2: Convert to fraction form
    28,647.97/39,536.58 = 15,902.35/x
  3. Step 3: Cross multiply
    28,647.97x = 39,536.58 × 15,902.35
  4. Step 4: Simplify right side
    28,647.97x = 628,724,532.96
  5. Step 5: Solve for x
    x = 628,724,532.96/28,647.97
  6. Step 6: Final answer
    x = 21,946.56

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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.