Home / 30,287.12-41,620.91-28,897.97

Finding the Fourth Proportional to 30,287.12, 41,620.91 and 28,897.97

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Solution

The fourth proportional to 30,287.12, 41,620.91 and 28,897.97 is: 39,711.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,287.12 : 41,620.91 = 28,897.97 : x
  2. Step 2: Convert to fraction form
    30,287.12/41,620.91 = 28,897.97/x
  3. Step 3: Cross multiply
    30,287.12x = 41,620.91 × 28,897.97
  4. Step 4: Simplify right side
    30,287.12x = 1,202,759,455.96
  5. Step 5: Solve for x
    x = 1,202,759,455.96/30,287.12
  6. Step 6: Final answer
    x = 39,711.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.