Home / 28,352.96-42,531.49-8,631.54

Finding the Fourth Proportional to 28,352.96, 42,531.49 and 8,631.54

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Solution

The fourth proportional to 28,352.96, 42,531.49 and 8,631.54 is: 12,947.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,352.96 : 42,531.49 = 8,631.54 : x
  2. Step 2: Convert to fraction form
    28,352.96/42,531.49 = 8,631.54/x
  3. Step 3: Cross multiply
    28,352.96x = 42,531.49 × 8,631.54
  4. Step 4: Simplify right side
    28,352.96x = 367,112,257.19
  5. Step 5: Solve for x
    x = 367,112,257.19/28,352.96
  6. Step 6: Final answer
    x = 12,947.93

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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.