Home / 20,625.15-28,463.13-11,672.65

Finding the Fourth Proportional to 20,625.15, 28,463.13 and 11,672.65

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Solution

The fourth proportional to 20,625.15, 28,463.13 and 11,672.65 is: 16,108.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,625.15 : 28,463.13 = 11,672.65 : x
  2. Step 2: Convert to fraction form
    20,625.15/28,463.13 = 11,672.65/x
  3. Step 3: Cross multiply
    20,625.15x = 28,463.13 × 11,672.65
  4. Step 4: Simplify right side
    20,625.15x = 332,240,154.39
  5. Step 5: Solve for x
    x = 332,240,154.39/20,625.15
  6. Step 6: Final answer
    x = 16,108.50

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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.