Home / 30,847.80-42,569.97-16,700.64

Finding the Fourth Proportional to 30,847.80, 42,569.97 and 16,700.64

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Solution

The fourth proportional to 30,847.80, 42,569.97 and 16,700.64 is: 23,046.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,847.80 : 42,569.97 = 16,700.64 : x
  2. Step 2: Convert to fraction form
    30,847.80/42,569.97 = 16,700.64/x
  3. Step 3: Cross multiply
    30,847.80x = 42,569.97 × 16,700.64
  4. Step 4: Simplify right side
    30,847.80x = 710,945,530.93
  5. Step 5: Solve for x
    x = 710,945,530.93/30,847.80
  6. Step 6: Final answer
    x = 23,046.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.