Home / 20,777.94-28,673.66-11,346.50

Finding the Fourth Proportional to 20,777.94, 28,673.66 and 11,346.50

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Solution

The fourth proportional to 20,777.94, 28,673.66 and 11,346.50 is: 15,658.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,777.94 : 28,673.66 = 11,346.50 : x
  2. Step 2: Convert to fraction form
    20,777.94/28,673.66 = 11,346.50/x
  3. Step 3: Cross multiply
    20,777.94x = 28,673.66 × 11,346.50
  4. Step 4: Simplify right side
    20,777.94x = 325,345,783.24
  5. Step 5: Solve for x
    x = 325,345,783.24/20,777.94
  6. Step 6: Final answer
    x = 15,658.23

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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.