Home / 20,007.86-30,011.79-6,860.34

Finding the Fourth Proportional to 20,007.86, 30,011.79 and 6,860.34

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Solution

The fourth proportional to 20,007.86, 30,011.79 and 6,860.34 is: 10,290.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.86 : 30,011.79 = 6,860.34 : x
  2. Step 2: Convert to fraction form
    20,007.86/30,011.79 = 6,860.34/x
  3. Step 3: Cross multiply
    20,007.86x = 30,011.79 × 6,860.34
  4. Step 4: Simplify right side
    20,007.86x = 205,891,083.41
  5. Step 5: Solve for x
    x = 205,891,083.41/20,007.86
  6. Step 6: Final answer
    x = 10,290.51

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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.