Home / 28,604.80-42,907.20-19,273.60

Finding the Fourth Proportional to 28,604.80, 42,907.20 and 19,273.60

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Solution

The fourth proportional to 28,604.80, 42,907.20 and 19,273.60 is: 28,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,604.80 : 42,907.20 = 19,273.60 : x
  2. Step 2: Convert to fraction form
    28,604.80/42,907.20 = 19,273.60/x
  3. Step 3: Cross multiply
    28,604.80x = 42,907.20 × 19,273.60
  4. Step 4: Simplify right side
    28,604.80x = 826,976,209.92
  5. Step 5: Solve for x
    x = 826,976,209.92/28,604.80
  6. Step 6: Final answer
    x = 28,910.40

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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.