Home / 20,243.79-30,323.16-12,844.44

Finding the Fourth Proportional to 20,243.79, 30,323.16 and 12,844.44

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Solution

The fourth proportional to 20,243.79, 30,323.16 and 12,844.44 is: 19,239.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.79 : 30,323.16 = 12,844.44 : x
  2. Step 2: Convert to fraction form
    20,243.79/30,323.16 = 12,844.44/x
  3. Step 3: Cross multiply
    20,243.79x = 30,323.16 × 12,844.44
  4. Step 4: Simplify right side
    20,243.79x = 389,484,009.23
  5. Step 5: Solve for x
    x = 389,484,009.23/20,243.79
  6. Step 6: Final answer
    x = 19,239.68

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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.