Home / 28,023.94-38,673.84-15,449.50

Finding the Fourth Proportional to 28,023.94, 38,673.84 and 15,449.50

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Solution

The fourth proportional to 28,023.94, 38,673.84 and 15,449.50 is: 21,320.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023.94 : 38,673.84 = 15,449.50 : x
  2. Step 2: Convert to fraction form
    28,023.94/38,673.84 = 15,449.50/x
  3. Step 3: Cross multiply
    28,023.94x = 38,673.84 × 15,449.50
  4. Step 4: Simplify right side
    28,023.94x = 597,491,452.33
  5. Step 5: Solve for x
    x = 597,491,452.33/28,023.94
  6. Step 6: Final answer
    x = 21,320.75

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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.