Home / 30,350.27-41,890.08-19,721.45

Finding the Fourth Proportional to 30,350.27, 41,890.08 and 19,721.45

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Solution

The fourth proportional to 30,350.27, 41,890.08 and 19,721.45 is: 27,219.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,350.27 : 41,890.08 = 19,721.45 : x
  2. Step 2: Convert to fraction form
    30,350.27/41,890.08 = 19,721.45/x
  3. Step 3: Cross multiply
    30,350.27x = 41,890.08 × 19,721.45
  4. Step 4: Simplify right side
    30,350.27x = 826,133,118.22
  5. Step 5: Solve for x
    x = 826,133,118.22/30,350.27
  6. Step 6: Final answer
    x = 27,219.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.