Home / 28,150.43-38,861.65-16,211.46

Finding the Fourth Proportional to 28,150.43, 38,861.65 and 16,211.46

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Solution

The fourth proportional to 28,150.43, 38,861.65 and 16,211.46 is: 22,379.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,150.43 : 38,861.65 = 16,211.46 : x
  2. Step 2: Convert to fraction form
    28,150.43/38,861.65 = 16,211.46/x
  3. Step 3: Cross multiply
    28,150.43x = 38,861.65 × 16,211.46
  4. Step 4: Simplify right side
    28,150.43x = 630,003,986.31
  5. Step 5: Solve for x
    x = 630,003,986.31/28,150.43
  6. Step 6: Final answer
    x = 22,379.91

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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.