Home / 30,108.30-45,205.65-16,986.30

Finding the Fourth Proportional to 30,108.30, 45,205.65 and 16,986.30

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Solution

The fourth proportional to 30,108.30, 45,205.65 and 16,986.30 is: 25,503.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,108.30 : 45,205.65 = 16,986.30 : x
  2. Step 2: Convert to fraction form
    30,108.30/45,205.65 = 16,986.30/x
  3. Step 3: Cross multiply
    30,108.30x = 45,205.65 × 16,986.30
  4. Step 4: Simplify right side
    30,108.30x = 767,876,732.60
  5. Step 5: Solve for x
    x = 767,876,732.60/30,108.30
  6. Step 6: Final answer
    x = 25,503.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.