Home / 28,355.73-42,539.93-8,635.82

Finding the Fourth Proportional to 28,355.73, 42,539.93 and 8,635.82

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Solution

The fourth proportional to 28,355.73, 42,539.93 and 8,635.82 is: 12,955.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355.73 : 42,539.93 = 8,635.82 : x
  2. Step 2: Convert to fraction form
    28,355.73/42,539.93 = 8,635.82/x
  3. Step 3: Cross multiply
    28,355.73x = 42,539.93 × 8,635.82
  4. Step 4: Simplify right side
    28,355.73x = 367,366,922.41
  5. Step 5: Solve for x
    x = 367,366,922.41/28,355.73
  6. Step 6: Final answer
    x = 12,955.65

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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.