Home / 20,664.24-28,468.44-14,365.68

Finding the Fourth Proportional to 20,664.24, 28,468.44 and 14,365.68

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Solution

The fourth proportional to 20,664.24, 28,468.44 and 14,365.68 is: 19,791.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.24 : 28,468.44 = 14,365.68 : x
  2. Step 2: Convert to fraction form
    20,664.24/28,468.44 = 14,365.68/x
  3. Step 3: Cross multiply
    20,664.24x = 28,468.44 × 14,365.68
  4. Step 4: Simplify right side
    20,664.24x = 408,968,499.14
  5. Step 5: Solve for x
    x = 408,968,499.14/20,664.24
  6. Step 6: Final answer
    x = 19,791.12

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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.