Home / 28,456.11-42,690.87-9,736.34

Finding the Fourth Proportional to 28,456.11, 42,690.87 and 9,736.34

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Solution

The fourth proportional to 28,456.11, 42,690.87 and 9,736.34 is: 14,606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,456.11 : 42,690.87 = 9,736.34 : x
  2. Step 2: Convert to fraction form
    28,456.11/42,690.87 = 9,736.34/x
  3. Step 3: Cross multiply
    28,456.11x = 42,690.87 × 9,736.34
  4. Step 4: Simplify right side
    28,456.11x = 415,652,611.76
  5. Step 5: Solve for x
    x = 415,652,611.76/28,456.11
  6. Step 6: Final answer
    x = 14,606.80

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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.