Home / 19,069.08-28,621.92-7,972.80

Finding the Fourth Proportional to 19,069.08, 28,621.92 and 7,972.80

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Solution

The fourth proportional to 19,069.08, 28,621.92 and 7,972.80 is: 11,966.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,069.08 : 28,621.92 = 7,972.80 : x
  2. Step 2: Convert to fraction form
    19,069.08/28,621.92 = 7,972.80/x
  3. Step 3: Cross multiply
    19,069.08x = 28,621.92 × 7,972.80
  4. Step 4: Simplify right side
    19,069.08x = 228,196,843.78
  5. Step 5: Solve for x
    x = 228,196,843.78/19,069.08
  6. Step 6: Final answer
    x = 11,966.85

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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.