Home / 19,139.20-28,675.99-15,202.60

Finding the Fourth Proportional to 19,139.20, 28,675.99 and 15,202.60

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Solution

The fourth proportional to 19,139.20, 28,675.99 and 15,202.60 is: 22,777.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139.20 : 28,675.99 = 15,202.60 : x
  2. Step 2: Convert to fraction form
    19,139.20/28,675.99 = 15,202.60/x
  3. Step 3: Cross multiply
    19,139.20x = 28,675.99 × 15,202.60
  4. Step 4: Simplify right side
    19,139.20x = 435,949,552.89
  5. Step 5: Solve for x
    x = 435,949,552.89/19,139.20
  6. Step 6: Final answer
    x = 22,777.84

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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.