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Finding the Fourth Proportional to 34,257.76, 51,385.84 and 15,789.76

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Solution

The fourth proportional to 34,257.76, 51,385.84 and 15,789.76 is: 23,684.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,257.76 : 51,385.84 = 15,789.76 : x
  2. Step 2: Convert to fraction form
    34,257.76/51,385.84 = 15,789.76/x
  3. Step 3: Cross multiply
    34,257.76x = 51,385.84 × 15,789.76
  4. Step 4: Simplify right side
    34,257.76x = 811,370,081.00
  5. Step 5: Solve for x
    x = 811,370,081.00/34,257.76
  6. Step 6: Final answer
    x = 23,684.27

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1.5x scale

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.