Home / 28,444.11-42,661.31-7,662.75

Finding the Fourth Proportional to 28,444.11, 42,661.31 and 7,662.75

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Solution

The fourth proportional to 28,444.11, 42,661.31 and 7,662.75 is: 11,492.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,444.11 : 42,661.31 = 7,662.75 : x
  2. Step 2: Convert to fraction form
    28,444.11/42,661.31 = 7,662.75/x
  3. Step 3: Cross multiply
    28,444.11x = 42,661.31 × 7,662.75
  4. Step 4: Simplify right side
    28,444.11x = 326,902,914.89
  5. Step 5: Solve for x
    x = 326,902,914.89/28,444.11
  6. Step 6: Final answer
    x = 11,492.82

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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.