Home / 28,878.18-43,284.40-12,227.82

Finding the Fourth Proportional to 28,878.18, 43,284.40 and 12,227.82

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Solution

The fourth proportional to 28,878.18, 43,284.40 and 12,227.82 is: 18,327.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,878.18 : 43,284.40 = 12,227.82 : x
  2. Step 2: Convert to fraction form
    28,878.18/43,284.40 = 12,227.82/x
  3. Step 3: Cross multiply
    28,878.18x = 43,284.40 × 12,227.82
  4. Step 4: Simplify right side
    28,878.18x = 529,273,852.01
  5. Step 5: Solve for x
    x = 529,273,852.01/28,878.18
  6. Step 6: Final answer
    x = 18,327.81

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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.