Home / 28,083.73-42,134.70-8,362.45

Finding the Fourth Proportional to 28,083.73, 42,134.70 and 8,362.45

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Solution

The fourth proportional to 28,083.73, 42,134.70 and 8,362.45 is: 12,546.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.73 : 42,134.70 = 8,362.45 : x
  2. Step 2: Convert to fraction form
    28,083.73/42,134.70 = 8,362.45/x
  3. Step 3: Cross multiply
    28,083.73x = 42,134.70 × 8,362.45
  4. Step 4: Simplify right side
    28,083.73x = 352,349,322.02
  5. Step 5: Solve for x
    x = 352,349,322.02/28,083.73
  6. Step 6: Final answer
    x = 12,546.39

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1.5x scale

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.