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Finding the Fourth Proportional to 34,807.20, 52,210.80 and 8,511.60

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Solution

The fourth proportional to 34,807.20, 52,210.80 and 8,511.60 is: 12,767.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,807.20 : 52,210.80 = 8,511.60 : x
  2. Step 2: Convert to fraction form
    34,807.20/52,210.80 = 8,511.60/x
  3. Step 3: Cross multiply
    34,807.20x = 52,210.80 × 8,511.60
  4. Step 4: Simplify right side
    34,807.20x = 444,397,445.28
  5. Step 5: Solve for x
    x = 444,397,445.28/34,807.20
  6. Step 6: Final answer
    x = 12,767.40

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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.