Home / 30,273.90-41,779.17-18,330.48

Finding the Fourth Proportional to 30,273.90, 41,779.17 and 18,330.48

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Solution

The fourth proportional to 30,273.90, 41,779.17 and 18,330.48 is: 25,296.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,273.90 : 41,779.17 = 18,330.48 : x
  2. Step 2: Convert to fraction form
    30,273.90/41,779.17 = 18,330.48/x
  3. Step 3: Cross multiply
    30,273.90x = 41,779.17 × 18,330.48
  4. Step 4: Simplify right side
    30,273.90x = 765,832,240.10
  5. Step 5: Solve for x
    x = 765,832,240.10/30,273.90
  6. Step 6: Final answer
    x = 25,296.78

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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.