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Finding the Fourth Proportional to 34,751.58, 52,107.60 and 13,680.20

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Solution

The fourth proportional to 34,751.58, 52,107.60 and 13,680.20 is: 20,512.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,751.58 : 52,107.60 = 13,680.20 : x
  2. Step 2: Convert to fraction form
    34,751.58/52,107.60 = 13,680.20/x
  3. Step 3: Cross multiply
    34,751.58x = 52,107.60 × 13,680.20
  4. Step 4: Simplify right side
    34,751.58x = 712,842,389.52
  5. Step 5: Solve for x
    x = 712,842,389.52/34,751.58
  6. Step 6: Final answer
    x = 20,512.52

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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.