Home / 28,811.89-43,221.48-9,087.58

Finding the Fourth Proportional to 28,811.89, 43,221.48 and 9,087.58

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Solution

The fourth proportional to 28,811.89, 43,221.48 and 9,087.58 is: 13,632.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,811.89 : 43,221.48 = 9,087.58 : x
  2. Step 2: Convert to fraction form
    28,811.89/43,221.48 = 9,087.58/x
  3. Step 3: Cross multiply
    28,811.89x = 43,221.48 × 9,087.58
  4. Step 4: Simplify right side
    28,811.89x = 392,778,657.22
  5. Step 5: Solve for x
    x = 392,778,657.22/28,811.89
  6. Step 6: Final answer
    x = 13,632.52

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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.