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Finding the Fourth Proportional to 20,466.58, 30,698.79 and 6,614.50

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Solution

The fourth proportional to 20,466.58, 30,698.79 and 6,614.50 is: 9,921.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466.58 : 30,698.79 = 6,614.50 : x
  2. Step 2: Convert to fraction form
    20,466.58/30,698.79 = 6,614.50/x
  3. Step 3: Cross multiply
    20,466.58x = 30,698.79 × 6,614.50
  4. Step 4: Simplify right side
    20,466.58x = 203,057,146.46
  5. Step 5: Solve for x
    x = 203,057,146.46/20,466.58
  6. Step 6: Final answer
    x = 9,921.40

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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.