Home / 34,316.20-51,474.30-12,129.40

Finding the Fourth Proportional to 34,316.20, 51,474.30 and 12,129.40

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Solution

The fourth proportional to 34,316.20, 51,474.30 and 12,129.40 is: 18,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,316.20 : 51,474.30 = 12,129.40 : x
  2. Step 2: Convert to fraction form
    34,316.20/51,474.30 = 12,129.40/x
  3. Step 3: Cross multiply
    34,316.20x = 51,474.30 × 12,129.40
  4. Step 4: Simplify right side
    34,316.20x = 624,352,374.42
  5. Step 5: Solve for x
    x = 624,352,374.42/34,316.20
  6. Step 6: Final answer
    x = 18,194.10

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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.