Home / 47,578.98-71,411.76-21,278.82

Finding the Fourth Proportional to 47,578.98, 71,411.76 and 21,278.82

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Solution

The fourth proportional to 47,578.98, 71,411.76 and 21,278.82 is: 31,937.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,578.98 : 71,411.76 = 21,278.82 : x
  2. Step 2: Convert to fraction form
    47,578.98/71,411.76 = 21,278.82/x
  3. Step 3: Cross multiply
    47,578.98x = 71,411.76 × 21,278.82
  4. Step 4: Simplify right side
    47,578.98x = 1,519,557,986.92
  5. Step 5: Solve for x
    x = 1,519,557,986.92/47,578.98
  6. Step 6: Final answer
    x = 31,937.59

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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.