Home / 28,268.28-39,010.93-15,522.72

Finding the Fourth Proportional to 28,268.28, 39,010.93 and 15,522.72

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Solution

The fourth proportional to 28,268.28, 39,010.93 and 15,522.72 is: 21,421.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,268.28 : 39,010.93 = 15,522.72 : x
  2. Step 2: Convert to fraction form
    28,268.28/39,010.93 = 15,522.72/x
  3. Step 3: Cross multiply
    28,268.28x = 39,010.93 × 15,522.72
  4. Step 4: Simplify right side
    28,268.28x = 605,555,743.33
  5. Step 5: Solve for x
    x = 605,555,743.33/28,268.28
  6. Step 6: Final answer
    x = 21,421.74

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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.