Home / 30,070.20-41,493.09-16,639.59

Finding the Fourth Proportional to 30,070.20, 41,493.09 and 16,639.59

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Solution

The fourth proportional to 30,070.20, 41,493.09 and 16,639.59 is: 22,960.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,070.20 : 41,493.09 = 16,639.59 : x
  2. Step 2: Convert to fraction form
    30,070.20/41,493.09 = 16,639.59/x
  3. Step 3: Cross multiply
    30,070.20x = 41,493.09 × 16,639.59
  4. Step 4: Simplify right side
    30,070.20x = 690,428,005.43
  5. Step 5: Solve for x
    x = 690,428,005.43/30,070.20
  6. Step 6: Final answer
    x = 22,960.54

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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.