Home / 20,538.90-30,794.46-8,051.13

Finding the Fourth Proportional to 20,538.90, 30,794.46 and 8,051.13

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Solution

The fourth proportional to 20,538.90, 30,794.46 and 8,051.13 is: 12,071.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,538.90 : 30,794.46 = 8,051.13 : x
  2. Step 2: Convert to fraction form
    20,538.90/30,794.46 = 8,051.13/x
  3. Step 3: Cross multiply
    20,538.90x = 30,794.46 × 8,051.13
  4. Step 4: Simplify right side
    20,538.90x = 247,930,200.74
  5. Step 5: Solve for x
    x = 247,930,200.74/20,538.90
  6. Step 6: Final answer
    x = 12,071.25

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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.