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Finding the Fourth Proportional to 34,270.80, 51,411.60 and 10,899.60

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Solution

The fourth proportional to 34,270.80, 51,411.60 and 10,899.60 is: 16,351.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,270.80 : 51,411.60 = 10,899.60 : x
  2. Step 2: Convert to fraction form
    34,270.80/51,411.60 = 10,899.60/x
  3. Step 3: Cross multiply
    34,270.80x = 51,411.60 × 10,899.60
  4. Step 4: Simplify right side
    34,270.80x = 560,365,875.36
  5. Step 5: Solve for x
    x = 560,365,875.36/34,270.80
  6. Step 6: Final answer
    x = 16,351.12

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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.