Home / 28,881.76-43,322.42-11,784.58

Finding the Fourth Proportional to 28,881.76, 43,322.42 and 11,784.58

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Solution

The fourth proportional to 28,881.76, 43,322.42 and 11,784.58 is: 17,676.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,881.76 : 43,322.42 = 11,784.58 : x
  2. Step 2: Convert to fraction form
    28,881.76/43,322.42 = 11,784.58/x
  3. Step 3: Cross multiply
    28,881.76x = 43,322.42 × 11,784.58
  4. Step 4: Simplify right side
    28,881.76x = 510,536,524.28
  5. Step 5: Solve for x
    x = 510,536,524.28/28,881.76
  6. Step 6: Final answer
    x = 17,676.78

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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.