Home / 20,291.48-30,394.90-16,321.30

Finding the Fourth Proportional to 20,291.48, 30,394.90 and 16,321.30

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Solution

The fourth proportional to 20,291.48, 30,394.90 and 16,321.30 is: 24,447.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,291.48 : 30,394.90 = 16,321.30 : x
  2. Step 2: Convert to fraction form
    20,291.48/30,394.90 = 16,321.30/x
  3. Step 3: Cross multiply
    20,291.48x = 30,394.90 × 16,321.30
  4. Step 4: Simplify right side
    20,291.48x = 496,084,281.37
  5. Step 5: Solve for x
    x = 496,084,281.37/20,291.48
  6. Step 6: Final answer
    x = 24,447.91

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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.