Home / 20,192.78-30,282.69-6,681.44

Finding the Fourth Proportional to 20,192.78, 30,282.69 and 6,681.44

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Solution

The fourth proportional to 20,192.78, 30,282.69 and 6,681.44 is: 10,020.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.78 : 30,282.69 = 6,681.44 : x
  2. Step 2: Convert to fraction form
    20,192.78/30,282.69 = 6,681.44/x
  3. Step 3: Cross multiply
    20,192.78x = 30,282.69 × 6,681.44
  4. Step 4: Simplify right side
    20,192.78x = 202,331,824.86
  5. Step 5: Solve for x
    x = 202,331,824.86/20,192.78
  6. Step 6: Final answer
    x = 10,020.01

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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.