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Finding the Fourth Proportional to 20,552.10, 30,804.81 and 8,698.49

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Solution

The fourth proportional to 20,552.10, 30,804.81 and 8,698.49 is: 13,037.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552.10 : 30,804.81 = 8,698.49 : x
  2. Step 2: Convert to fraction form
    20,552.10/30,804.81 = 8,698.49/x
  3. Step 3: Cross multiply
    20,552.10x = 30,804.81 × 8,698.49
  4. Step 4: Simplify right side
    20,552.10x = 267,955,260.61
  5. Step 5: Solve for x
    x = 267,955,260.61/20,552.10
  6. Step 6: Final answer
    x = 13,037.86

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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.