Home / 28,896.95-39,815.55-19,449.11

Finding the Fourth Proportional to 28,896.95, 39,815.55 and 19,449.11

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Solution

The fourth proportional to 28,896.95, 39,815.55 and 19,449.11 is: 26,797.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,896.95 : 39,815.55 = 19,449.11 : x
  2. Step 2: Convert to fraction form
    28,896.95/39,815.55 = 19,449.11/x
  3. Step 3: Cross multiply
    28,896.95x = 39,815.55 × 19,449.11
  4. Step 4: Simplify right side
    28,896.95x = 774,377,111.20
  5. Step 5: Solve for x
    x = 774,377,111.20/28,896.95
  6. Step 6: Final answer
    x = 26,797.88

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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.