Home / 30,734.64-42,414.77-17,989.09

Finding the Fourth Proportional to 30,734.64, 42,414.77 and 17,989.09

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Solution

The fourth proportional to 30,734.64, 42,414.77 and 17,989.09 is: 24,825.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,734.64 : 42,414.77 = 17,989.09 : x
  2. Step 2: Convert to fraction form
    30,734.64/42,414.77 = 17,989.09/x
  3. Step 3: Cross multiply
    30,734.64x = 42,414.77 × 17,989.09
  4. Step 4: Simplify right side
    30,734.64x = 763,003,053.80
  5. Step 5: Solve for x
    x = 763,003,053.80/30,734.64
  6. Step 6: Final answer
    x = 24,825.51

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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.