Home / 28,606.55-42,916.01-11,739.60

Finding the Fourth Proportional to 28,606.55, 42,916.01 and 11,739.60

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Solution

The fourth proportional to 28,606.55, 42,916.01 and 11,739.60 is: 17,611.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,606.55 : 42,916.01 = 11,739.60 : x
  2. Step 2: Convert to fraction form
    28,606.55/42,916.01 = 11,739.60/x
  3. Step 3: Cross multiply
    28,606.55x = 42,916.01 × 11,739.60
  4. Step 4: Simplify right side
    28,606.55x = 503,816,732.30
  5. Step 5: Solve for x
    x = 503,816,732.30/28,606.55
  6. Step 6: Final answer
    x = 17,611.94

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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.