Home / 20,077.76-30,096.58-13,419.86

Finding the Fourth Proportional to 20,077.76, 30,096.58 and 13,419.86

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Solution

The fourth proportional to 20,077.76, 30,096.58 and 13,419.86 is: 20,116.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.76 : 30,096.58 = 13,419.86 : x
  2. Step 2: Convert to fraction form
    20,077.76/30,096.58 = 13,419.86/x
  3. Step 3: Cross multiply
    20,077.76x = 30,096.58 × 13,419.86
  4. Step 4: Simplify right side
    20,077.76x = 403,891,890.08
  5. Step 5: Solve for x
    x = 403,891,890.08/20,077.76
  6. Step 6: Final answer
    x = 20,116.38

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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.