Home / 30,995.16-42,772.96-16,847.68

Finding the Fourth Proportional to 30,995.16, 42,772.96 and 16,847.68

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Solution

The fourth proportional to 30,995.16, 42,772.96 and 16,847.68 is: 23,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,995.16 : 42,772.96 = 16,847.68 : x
  2. Step 2: Convert to fraction form
    30,995.16/42,772.96 = 16,847.68/x
  3. Step 3: Cross multiply
    30,995.16x = 42,772.96 × 16,847.68
  4. Step 4: Simplify right side
    30,995.16x = 720,625,142.73
  5. Step 5: Solve for x
    x = 720,625,142.73/30,995.16
  6. Step 6: Final answer
    x = 23,249.60

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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.