Home / 19,288.64-28,876-14,379.84

Finding the Fourth Proportional to 19,288.64, 28,876 and 14,379.84

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Solution

The fourth proportional to 19,288.64, 28,876 and 14,379.84 is: 21,527.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288.64 : 28,876 = 14,379.84 : x
  2. Step 2: Convert to fraction form
    19,288.64/28,876 = 14,379.84/x
  3. Step 3: Cross multiply
    19,288.64x = 28,876 × 14,379.84
  4. Step 4: Simplify right side
    19,288.64x = 415,232,259.84
  5. Step 5: Solve for x
    x = 415,232,259.84/19,288.64
  6. Step 6: Final answer
    x = 21,527.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.