Home / 20,416.37-28,167.32-13,346.88

Finding the Fourth Proportional to 20,416.37, 28,167.32 and 13,346.88

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Solution

The fourth proportional to 20,416.37, 28,167.32 and 13,346.88 is: 18,413.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.37 : 28,167.32 = 13,346.88 : x
  2. Step 2: Convert to fraction form
    20,416.37/28,167.32 = 13,346.88/x
  3. Step 3: Cross multiply
    20,416.37x = 28,167.32 × 13,346.88
  4. Step 4: Simplify right side
    20,416.37x = 375,945,773.23
  5. Step 5: Solve for x
    x = 375,945,773.23/20,416.37
  6. Step 6: Final answer
    x = 18,413.94

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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.