Home / 20,536.20-30,804.21-8,047.40

Finding the Fourth Proportional to 20,536.20, 30,804.21 and 8,047.40

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Solution

The fourth proportional to 20,536.20, 30,804.21 and 8,047.40 is: 12,071.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,536.20 : 30,804.21 = 8,047.40 : x
  2. Step 2: Convert to fraction form
    20,536.20/30,804.21 = 8,047.40/x
  3. Step 3: Cross multiply
    20,536.20x = 30,804.21 × 8,047.40
  4. Step 4: Simplify right side
    20,536.20x = 247,893,799.55
  5. Step 5: Solve for x
    x = 247,893,799.55/20,536.20
  6. Step 6: Final answer
    x = 12,071.06

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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.