Home / 34,731.18-47,907.45-20,574

Finding the Fourth Proportional to 34,731.18, 47,907.45 and 20,574

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Solution

The fourth proportional to 34,731.18, 47,907.45 and 20,574 is: 28,379.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,731.18 : 47,907.45 = 20,574 : x
  2. Step 2: Convert to fraction form
    34,731.18/47,907.45 = 20,574/x
  3. Step 3: Cross multiply
    34,731.18x = 47,907.45 × 20,574
  4. Step 4: Simplify right side
    34,731.18x = 985,647,876.30
  5. Step 5: Solve for x
    x = 985,647,876.30/34,731.18
  6. Step 6: Final answer
    x = 28,379.34

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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.