Home / 34,319.40-51,479.10-12,132.60

Finding the Fourth Proportional to 34,319.40, 51,479.10 and 12,132.60

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Solution

The fourth proportional to 34,319.40, 51,479.10 and 12,132.60 is: 18,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,319.40 : 51,479.10 = 12,132.60 : x
  2. Step 2: Convert to fraction form
    34,319.40/51,479.10 = 12,132.60/x
  3. Step 3: Cross multiply
    34,319.40x = 51,479.10 × 12,132.60
  4. Step 4: Simplify right side
    34,319.40x = 624,575,328.66
  5. Step 5: Solve for x
    x = 624,575,328.66/34,319.40
  6. Step 6: Final answer
    x = 18,198.90

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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.