Home / 28,403.55-39,199.83-17,076.75

Finding the Fourth Proportional to 28,403.55, 39,199.83 and 17,076.75

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Solution

The fourth proportional to 28,403.55, 39,199.83 and 17,076.75 is: 23,567.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,403.55 : 39,199.83 = 17,076.75 : x
  2. Step 2: Convert to fraction form
    28,403.55/39,199.83 = 17,076.75/x
  3. Step 3: Cross multiply
    28,403.55x = 39,199.83 × 17,076.75
  4. Step 4: Simplify right side
    28,403.55x = 669,405,696.95
  5. Step 5: Solve for x
    x = 669,405,696.95/28,403.55
  6. Step 6: Final answer
    x = 23,567.68

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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.