Home / 30,908.73-42,653.82-16,761.57

Finding the Fourth Proportional to 30,908.73, 42,653.82 and 16,761.57

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Solution

The fourth proportional to 30,908.73, 42,653.82 and 16,761.57 is: 23,130.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,908.73 : 42,653.82 = 16,761.57 : x
  2. Step 2: Convert to fraction form
    30,908.73/42,653.82 = 16,761.57/x
  3. Step 3: Cross multiply
    30,908.73x = 42,653.82 × 16,761.57
  4. Step 4: Simplify right side
    30,908.73x = 714,944,989.70
  5. Step 5: Solve for x
    x = 714,944,989.70/30,908.73
  6. Step 6: Final answer
    x = 23,130.84

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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.