Home / 20,703.41-28,571.40-11,630.36

Finding the Fourth Proportional to 20,703.41, 28,571.40 and 11,630.36

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Solution

The fourth proportional to 20,703.41, 28,571.40 and 11,630.36 is: 16,050.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,703.41 : 28,571.40 = 11,630.36 : x
  2. Step 2: Convert to fraction form
    20,703.41/28,571.40 = 11,630.36/x
  3. Step 3: Cross multiply
    20,703.41x = 28,571.40 × 11,630.36
  4. Step 4: Simplify right side
    20,703.41x = 332,295,739.13
  5. Step 5: Solve for x
    x = 332,295,739.13/20,703.41
  6. Step 6: Final answer
    x = 16,050.29

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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.