Home / 28,647.25-39,532.60-15,899.69

Finding the Fourth Proportional to 28,647.25, 39,532.60 and 15,899.69

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Solution

The fourth proportional to 28,647.25, 39,532.60 and 15,899.69 is: 21,941.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.25 : 39,532.60 = 15,899.69 : x
  2. Step 2: Convert to fraction form
    28,647.25/39,532.60 = 15,899.69/x
  3. Step 3: Cross multiply
    28,647.25x = 39,532.60 × 15,899.69
  4. Step 4: Simplify right side
    28,647.25x = 628,556,084.89
  5. Step 5: Solve for x
    x = 628,556,084.89/28,647.25
  6. Step 6: Final answer
    x = 21,941.24

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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.