Home / 20,590.36-28,405.27-12,092.33

Finding the Fourth Proportional to 20,590.36, 28,405.27 and 12,092.33

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Solution

The fourth proportional to 20,590.36, 28,405.27 and 12,092.33 is: 16,681.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590.36 : 28,405.27 = 12,092.33 : x
  2. Step 2: Convert to fraction form
    20,590.36/28,405.27 = 12,092.33/x
  3. Step 3: Cross multiply
    20,590.36x = 28,405.27 × 12,092.33
  4. Step 4: Simplify right side
    20,590.36x = 343,485,898.58
  5. Step 5: Solve for x
    x = 343,485,898.58/20,590.36
  6. Step 6: Final answer
    x = 16,681.88

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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.