Home / 47,379.84-71,110.68-19,315.38

Finding the Fourth Proportional to 47,379.84, 71,110.68 and 19,315.38

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Solution

The fourth proportional to 47,379.84, 71,110.68 and 19,315.38 is: 28,989.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,379.84 : 71,110.68 = 19,315.38 : x
  2. Step 2: Convert to fraction form
    47,379.84/71,110.68 = 19,315.38/x
  3. Step 3: Cross multiply
    47,379.84x = 71,110.68 × 19,315.38
  4. Step 4: Simplify right side
    47,379.84x = 1,373,529,806.26
  5. Step 5: Solve for x
    x = 1,373,529,806.26/47,379.84
  6. Step 6: Final answer
    x = 28,989.75

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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.