Home / 19,630.50-29,455.20-9,770.64

Finding the Fourth Proportional to 19,630.50, 29,455.20 and 9,770.64

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Solution

The fourth proportional to 19,630.50, 29,455.20 and 9,770.64 is: 14,660.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,630.50 : 29,455.20 = 9,770.64 : x
  2. Step 2: Convert to fraction form
    19,630.50/29,455.20 = 9,770.64/x
  3. Step 3: Cross multiply
    19,630.50x = 29,455.20 × 9,770.64
  4. Step 4: Simplify right side
    19,630.50x = 287,796,155.33
  5. Step 5: Solve for x
    x = 287,796,155.33/19,630.50
  6. Step 6: Final answer
    x = 14,660.66

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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.