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Finding the Fourth Proportional to 34,638.50, 47,801.13 and 19,734.50

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Solution

The fourth proportional to 34,638.50, 47,801.13 and 19,734.50 is: 27,233.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,638.50 : 47,801.13 = 19,734.50 : x
  2. Step 2: Convert to fraction form
    34,638.50/47,801.13 = 19,734.50/x
  3. Step 3: Cross multiply
    34,638.50x = 47,801.13 × 19,734.50
  4. Step 4: Simplify right side
    34,638.50x = 943,331,399.99
  5. Step 5: Solve for x
    x = 943,331,399.99/34,638.50
  6. Step 6: Final answer
    x = 27,233.61

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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.