Home / 27,779.69-38,336.89-15,204.44

Finding the Fourth Proportional to 27,779.69, 38,336.89 and 15,204.44

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Solution

The fourth proportional to 27,779.69, 38,336.89 and 15,204.44 is: 20,982.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,779.69 : 38,336.89 = 15,204.44 : x
  2. Step 2: Convert to fraction form
    27,779.69/38,336.89 = 15,204.44/x
  3. Step 3: Cross multiply
    27,779.69x = 38,336.89 × 15,204.44
  4. Step 4: Simplify right side
    27,779.69x = 582,890,943.79
  5. Step 5: Solve for x
    x = 582,890,943.79/27,779.69
  6. Step 6: Final answer
    x = 20,982.63

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Double scale
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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.