Home / 20,054.32-30,080.36-6,906.40

Finding the Fourth Proportional to 20,054.32, 30,080.36 and 6,906.40

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Solution

The fourth proportional to 20,054.32, 30,080.36 and 6,906.40 is: 10,359.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,054.32 : 30,080.36 = 6,906.40 : x
  2. Step 2: Convert to fraction form
    20,054.32/30,080.36 = 6,906.40/x
  3. Step 3: Cross multiply
    20,054.32x = 30,080.36 × 6,906.40
  4. Step 4: Simplify right side
    20,054.32x = 207,746,998.30
  5. Step 5: Solve for x
    x = 207,746,998.30/20,054.32
  6. Step 6: Final answer
    x = 10,359.21

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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.