Home / 28,717.86-43,071.93-7,936.50

Finding the Fourth Proportional to 28,717.86, 43,071.93 and 7,936.50

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Solution

The fourth proportional to 28,717.86, 43,071.93 and 7,936.50 is: 11,903.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.86 : 43,071.93 = 7,936.50 : x
  2. Step 2: Convert to fraction form
    28,717.86/43,071.93 = 7,936.50/x
  3. Step 3: Cross multiply
    28,717.86x = 43,071.93 × 7,936.50
  4. Step 4: Simplify right side
    28,717.86x = 341,840,372.45
  5. Step 5: Solve for x
    x = 341,840,372.45/28,717.86
  6. Step 6: Final answer
    x = 11,903.41

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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.