Home / 28,442.16-39,205.49-19,474.16

Finding the Fourth Proportional to 28,442.16, 39,205.49 and 19,474.16

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Solution

The fourth proportional to 28,442.16, 39,205.49 and 19,474.16 is: 26,843.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,442.16 : 39,205.49 = 19,474.16 : x
  2. Step 2: Convert to fraction form
    28,442.16/39,205.49 = 19,474.16/x
  3. Step 3: Cross multiply
    28,442.16x = 39,205.49 × 19,474.16
  4. Step 4: Simplify right side
    28,442.16x = 763,493,691.74
  5. Step 5: Solve for x
    x = 763,493,691.74/28,442.16
  6. Step 6: Final answer
    x = 26,843.73

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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.