Home / 34,309.89-51,455.59-12,120.35

Finding the Fourth Proportional to 34,309.89, 51,455.59 and 12,120.35

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Solution

The fourth proportional to 34,309.89, 51,455.59 and 12,120.35 is: 18,177.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,309.89 : 51,455.59 = 12,120.35 : x
  2. Step 2: Convert to fraction form
    34,309.89/51,455.59 = 12,120.35/x
  3. Step 3: Cross multiply
    34,309.89x = 51,455.59 × 12,120.35
  4. Step 4: Simplify right side
    34,309.89x = 623,659,631.62
  5. Step 5: Solve for x
    x = 623,659,631.62/34,309.89
  6. Step 6: Final answer
    x = 18,177.25

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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.