Home / 28,268.96-39,025.76-19,922.72

Finding the Fourth Proportional to 28,268.96, 39,025.76 and 19,922.72

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Solution

The fourth proportional to 28,268.96, 39,025.76 and 19,922.72 is: 27,503.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,268.96 : 39,025.76 = 19,922.72 : x
  2. Step 2: Convert to fraction form
    28,268.96/39,025.76 = 19,922.72/x
  3. Step 3: Cross multiply
    28,268.96x = 39,025.76 × 19,922.72
  4. Step 4: Simplify right side
    28,268.96x = 777,499,289.27
  5. Step 5: Solve for x
    x = 777,499,289.27/28,268.96
  6. Step 6: Final answer
    x = 27,503.64

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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.