Home / 20,013.42-30,009.98-6,681.62

Finding the Fourth Proportional to 20,013.42, 30,009.98 and 6,681.62

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Solution

The fourth proportional to 20,013.42, 30,009.98 and 6,681.62 is: 10,019.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013.42 : 30,009.98 = 6,681.62 : x
  2. Step 2: Convert to fraction form
    20,013.42/30,009.98 = 6,681.62/x
  3. Step 3: Cross multiply
    20,013.42x = 30,009.98 × 6,681.62
  4. Step 4: Simplify right side
    20,013.42x = 200,515,282.57
  5. Step 5: Solve for x
    x = 200,515,282.57/20,013.42
  6. Step 6: Final answer
    x = 10,019.04

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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.