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Finding the Fourth Proportional to 34,891.88, 48,150.79 and 19,779.71

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Solution

The fourth proportional to 34,891.88, 48,150.79 and 19,779.71 is: 27,295.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,891.88 : 48,150.79 = 19,779.71 : x
  2. Step 2: Convert to fraction form
    34,891.88/48,150.79 = 19,779.71/x
  3. Step 3: Cross multiply
    34,891.88x = 48,150.79 × 19,779.71
  4. Step 4: Simplify right side
    34,891.88x = 952,408,372.27
  5. Step 5: Solve for x
    x = 952,408,372.27/34,891.88
  6. Step 6: Final answer
    x = 27,295.99

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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.