Home / 20,068.31-30,103.74-6,740.76

Finding the Fourth Proportional to 20,068.31, 30,103.74 and 6,740.76

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Solution

The fourth proportional to 20,068.31, 30,103.74 and 6,740.76 is: 10,111.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.31 : 30,103.74 = 6,740.76 : x
  2. Step 2: Convert to fraction form
    20,068.31/30,103.74 = 6,740.76/x
  3. Step 3: Cross multiply
    20,068.31x = 30,103.74 × 6,740.76
  4. Step 4: Simplify right side
    20,068.31x = 202,922,086.44
  5. Step 5: Solve for x
    x = 202,922,086.44/20,068.31
  6. Step 6: Final answer
    x = 10,111.57

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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.