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Finding the Fourth Proportional to 34,280.40, 51,420.60 and 12,093.60

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Solution

The fourth proportional to 34,280.40, 51,420.60 and 12,093.60 is: 18,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,280.40 : 51,420.60 = 12,093.60 : x
  2. Step 2: Convert to fraction form
    34,280.40/51,420.60 = 12,093.60/x
  3. Step 3: Cross multiply
    34,280.40x = 51,420.60 × 12,093.60
  4. Step 4: Simplify right side
    34,280.40x = 621,860,168.16
  5. Step 5: Solve for x
    x = 621,860,168.16/34,280.40
  6. Step 6: Final answer
    x = 18,140.40

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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.