Home / 20,674.65-28,530.50-12,062.49

Finding the Fourth Proportional to 20,674.65, 28,530.50 and 12,062.49

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Solution

The fourth proportional to 20,674.65, 28,530.50 and 12,062.49 is: 16,645.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674.65 : 28,530.50 = 12,062.49 : x
  2. Step 2: Convert to fraction form
    20,674.65/28,530.50 = 12,062.49/x
  3. Step 3: Cross multiply
    20,674.65x = 28,530.50 × 12,062.49
  4. Step 4: Simplify right side
    20,674.65x = 344,148,870.95
  5. Step 5: Solve for x
    x = 344,148,870.95/20,674.65
  6. Step 6: Final answer
    x = 16,645.93

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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.