Home / 30,131.72-41,581.13-16,702.86

Finding the Fourth Proportional to 30,131.72, 41,581.13 and 16,702.86

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Solution

The fourth proportional to 30,131.72, 41,581.13 and 16,702.86 is: 23,049.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,131.72 : 41,581.13 = 16,702.86 : x
  2. Step 2: Convert to fraction form
    30,131.72/41,581.13 = 16,702.86/x
  3. Step 3: Cross multiply
    30,131.72x = 41,581.13 × 16,702.86
  4. Step 4: Simplify right side
    30,131.72x = 694,523,709.52
  5. Step 5: Solve for x
    x = 694,523,709.52/30,131.72
  6. Step 6: Final answer
    x = 23,049.59

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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.