Home / 40,855.91-61,287.40-11,273.75

Finding the Fourth Proportional to 40,855.91, 61,287.40 and 11,273.75

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Solution

The fourth proportional to 40,855.91, 61,287.40 and 11,273.75 is: 16,911.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,855.91 : 61,287.40 = 11,273.75 : x
  2. Step 2: Convert to fraction form
    40,855.91/61,287.40 = 11,273.75/x
  3. Step 3: Cross multiply
    40,855.91x = 61,287.40 × 11,273.75
  4. Step 4: Simplify right side
    40,855.91x = 690,938,763.23
  5. Step 5: Solve for x
    x = 690,938,763.23/40,855.91
  6. Step 6: Final answer
    x = 16,911.60

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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.