Home / 28,067.37-42,070.91-13,999.61

Finding the Fourth Proportional to 28,067.37, 42,070.91 and 13,999.61

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Solution

The fourth proportional to 28,067.37, 42,070.91 and 13,999.61 is: 20,984.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.37 : 42,070.91 = 13,999.61 : x
  2. Step 2: Convert to fraction form
    28,067.37/42,070.91 = 13,999.61/x
  3. Step 3: Cross multiply
    28,067.37x = 42,070.91 × 13,999.61
  4. Step 4: Simplify right side
    28,067.37x = 588,976,051.99
  5. Step 5: Solve for x
    x = 588,976,051.99/28,067.37
  6. Step 6: Final answer
    x = 20,984.37

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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.