Home / 20,661.62-30,992.36-5,870.68

Finding the Fourth Proportional to 20,661.62, 30,992.36 and 5,870.68

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Solution

The fourth proportional to 20,661.62, 30,992.36 and 5,870.68 is: 8,806.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,661.62 : 30,992.36 = 5,870.68 : x
  2. Step 2: Convert to fraction form
    20,661.62/30,992.36 = 5,870.68/x
  3. Step 3: Cross multiply
    20,661.62x = 30,992.36 × 5,870.68
  4. Step 4: Simplify right side
    20,661.62x = 181,946,121.17
  5. Step 5: Solve for x
    x = 181,946,121.17/20,661.62
  6. Step 6: Final answer
    x = 8,806.00

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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.