Home / 20,318.42-30,477.63-8,623.44

Finding the Fourth Proportional to 20,318.42, 30,477.63 and 8,623.44

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Solution

The fourth proportional to 20,318.42, 30,477.63 and 8,623.44 is: 12,935.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318.42 : 30,477.63 = 8,623.44 : x
  2. Step 2: Convert to fraction form
    20,318.42/30,477.63 = 8,623.44/x
  3. Step 3: Cross multiply
    20,318.42x = 30,477.63 × 8,623.44
  4. Step 4: Simplify right side
    20,318.42x = 262,822,013.65
  5. Step 5: Solve for x
    x = 262,822,013.65/20,318.42
  6. Step 6: Final answer
    x = 12,935.16

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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.