Home / 19,209.95-28,764.42-15,441.72

Finding the Fourth Proportional to 19,209.95, 28,764.42 and 15,441.72

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Solution

The fourth proportional to 19,209.95, 28,764.42 and 15,441.72 is: 23,121.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,209.95 : 28,764.42 = 15,441.72 : x
  2. Step 2: Convert to fraction form
    19,209.95/28,764.42 = 15,441.72/x
  3. Step 3: Cross multiply
    19,209.95x = 28,764.42 × 15,441.72
  4. Step 4: Simplify right side
    19,209.95x = 444,172,119.60
  5. Step 5: Solve for x
    x = 444,172,119.60/19,209.95
  6. Step 6: Final answer
    x = 23,121.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.