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Finding the Fourth Proportional to 34,000.88, 50,999.64 and 12,945.68

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Solution

The fourth proportional to 34,000.88, 50,999.64 and 12,945.68 is: 19,417.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,000.88 : 50,999.64 = 12,945.68 : x
  2. Step 2: Convert to fraction form
    34,000.88/50,999.64 = 12,945.68/x
  3. Step 3: Cross multiply
    34,000.88x = 50,999.64 × 12,945.68
  4. Step 4: Simplify right side
    34,000.88x = 660,225,019.56
  5. Step 5: Solve for x
    x = 660,225,019.56/34,000.88
  6. Step 6: Final answer
    x = 19,417.88

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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.