Home / 20,944.02-28,905.09-11,992.50

Finding the Fourth Proportional to 20,944.02, 28,905.09 and 11,992.50

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Solution

The fourth proportional to 20,944.02, 28,905.09 and 11,992.50 is: 16,550.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.02 : 28,905.09 = 11,992.50 : x
  2. Step 2: Convert to fraction form
    20,944.02/28,905.09 = 11,992.50/x
  3. Step 3: Cross multiply
    20,944.02x = 28,905.09 × 11,992.50
  4. Step 4: Simplify right side
    20,944.02x = 346,644,291.83
  5. Step 5: Solve for x
    x = 346,644,291.83/20,944.02
  6. Step 6: Final answer
    x = 16,550.99

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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.