Home / 27,447.60-37,879.12-15,511.44

Finding the Fourth Proportional to 27,447.60, 37,879.12 and 15,511.44

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Solution

The fourth proportional to 27,447.60, 37,879.12 and 15,511.44 is: 21,406.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,447.60 : 37,879.12 = 15,511.44 : x
  2. Step 2: Convert to fraction form
    27,447.60/37,879.12 = 15,511.44/x
  3. Step 3: Cross multiply
    27,447.60x = 37,879.12 × 15,511.44
  4. Step 4: Simplify right side
    27,447.60x = 587,559,697.13
  5. Step 5: Solve for x
    x = 587,559,697.13/27,447.60
  6. Step 6: Final answer
    x = 21,406.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.