Home / 20,181.61-30,225.43-19,480.83

Finding the Fourth Proportional to 20,181.61, 30,225.43 and 19,480.83

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Solution

The fourth proportional to 20,181.61, 30,225.43 and 19,480.83 is: 29,175.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.61 : 30,225.43 = 19,480.83 : x
  2. Step 2: Convert to fraction form
    20,181.61/30,225.43 = 19,480.83/x
  3. Step 3: Cross multiply
    20,181.61x = 30,225.43 × 19,480.83
  4. Step 4: Simplify right side
    20,181.61x = 588,816,463.51
  5. Step 5: Solve for x
    x = 588,816,463.51/20,181.61
  6. Step 6: Final answer
    x = 29,175.89

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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.