Home / 20,514.50-30,610.73-19,260.62

Finding the Fourth Proportional to 20,514.50, 30,610.73 and 19,260.62

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Solution

The fourth proportional to 20,514.50, 30,610.73 and 19,260.62 is: 28,739.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.50 : 30,610.73 = 19,260.62 : x
  2. Step 2: Convert to fraction form
    20,514.50/30,610.73 = 19,260.62/x
  3. Step 3: Cross multiply
    20,514.50x = 30,610.73 × 19,260.62
  4. Step 4: Simplify right side
    20,514.50x = 589,581,638.45
  5. Step 5: Solve for x
    x = 589,581,638.45/20,514.50
  6. Step 6: Final answer
    x = 28,739.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.