Home / 20,762.44-31,169.58-19,820.68

Finding the Fourth Proportional to 20,762.44, 31,169.58 and 19,820.68

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Solution

The fourth proportional to 20,762.44, 31,169.58 and 19,820.68 is: 29,755.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.44 : 31,169.58 = 19,820.68 : x
  2. Step 2: Convert to fraction form
    20,762.44/31,169.58 = 19,820.68/x
  3. Step 3: Cross multiply
    20,762.44x = 31,169.58 × 19,820.68
  4. Step 4: Simplify right side
    20,762.44x = 617,802,270.91
  5. Step 5: Solve for x
    x = 617,802,270.91/20,762.44
  6. Step 6: Final answer
    x = 29,755.76

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1.5x scale

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.