Home / 30,431.85-45,664.97-16,391.58

Finding the Fourth Proportional to 30,431.85, 45,664.97 and 16,391.58

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Solution

The fourth proportional to 30,431.85, 45,664.97 and 16,391.58 is: 24,596.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,431.85 : 45,664.97 = 16,391.58 : x
  2. Step 2: Convert to fraction form
    30,431.85/45,664.97 = 16,391.58/x
  3. Step 3: Cross multiply
    30,431.85x = 45,664.97 × 16,391.58
  4. Step 4: Simplify right side
    30,431.85x = 748,521,008.95
  5. Step 5: Solve for x
    x = 748,521,008.95/30,431.85
  6. Step 6: Final answer
    x = 24,596.63

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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.