Home / 20,672.48-28,527.18-12,174.96

Finding the Fourth Proportional to 20,672.48, 28,527.18 and 12,174.96

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Solution

The fourth proportional to 20,672.48, 28,527.18 and 12,174.96 is: 16,800.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672.48 : 28,527.18 = 12,174.96 : x
  2. Step 2: Convert to fraction form
    20,672.48/28,527.18 = 12,174.96/x
  3. Step 3: Cross multiply
    20,672.48x = 28,527.18 × 12,174.96
  4. Step 4: Simplify right side
    20,672.48x = 347,317,275.41
  5. Step 5: Solve for x
    x = 347,317,275.41/20,672.48
  6. Step 6: Final answer
    x = 16,800.95

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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.