Home / 30,949.68-42,712.82-17,338.92

Finding the Fourth Proportional to 30,949.68, 42,712.82 and 17,338.92

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Solution

The fourth proportional to 30,949.68, 42,712.82 and 17,338.92 is: 23,928.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,949.68 : 42,712.82 = 17,338.92 : x
  2. Step 2: Convert to fraction form
    30,949.68/42,712.82 = 17,338.92/x
  3. Step 3: Cross multiply
    30,949.68x = 42,712.82 × 17,338.92
  4. Step 4: Simplify right side
    30,949.68x = 740,594,168.95
  5. Step 5: Solve for x
    x = 740,594,168.95/30,949.68
  6. Step 6: Final answer
    x = 23,928.98

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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.