Home / 20,077.66-30,109.20-6,926.77

Finding the Fourth Proportional to 20,077.66, 30,109.20 and 6,926.77

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Solution

The fourth proportional to 20,077.66, 30,109.20 and 6,926.77 is: 10,387.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.66 : 30,109.20 = 6,926.77 : x
  2. Step 2: Convert to fraction form
    20,077.66/30,109.20 = 6,926.77/x
  3. Step 3: Cross multiply
    20,077.66x = 30,109.20 × 6,926.77
  4. Step 4: Simplify right side
    20,077.66x = 208,559,503.28
  5. Step 5: Solve for x
    x = 208,559,503.28/20,077.66
  6. Step 6: Final answer
    x = 10,387.64

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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.