Home / 30,905.88-42,650.36-16,758.84

Finding the Fourth Proportional to 30,905.88, 42,650.36 and 16,758.84

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Solution

The fourth proportional to 30,905.88, 42,650.36 and 16,758.84 is: 23,127.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,905.88 : 42,650.36 = 16,758.84 : x
  2. Step 2: Convert to fraction form
    30,905.88/42,650.36 = 16,758.84/x
  3. Step 3: Cross multiply
    30,905.88x = 42,650.36 × 16,758.84
  4. Step 4: Simplify right side
    30,905.88x = 714,770,559.18
  5. Step 5: Solve for x
    x = 714,770,559.18/30,905.88
  6. Step 6: Final answer
    x = 23,127.33

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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.