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Finding the Fourth Proportional to 34,687.88, 47,878.52 and 19,589.38

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Solution

The fourth proportional to 34,687.88, 47,878.52 and 19,589.38 is: 27,038.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,687.88 : 47,878.52 = 19,589.38 : x
  2. Step 2: Convert to fraction form
    34,687.88/47,878.52 = 19,589.38/x
  3. Step 3: Cross multiply
    34,687.88x = 47,878.52 × 19,589.38
  4. Step 4: Simplify right side
    34,687.88x = 937,910,469.76
  5. Step 5: Solve for x
    x = 937,910,469.76/34,687.88
  6. Step 6: Final answer
    x = 27,038.57

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1.5x scale

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.