Home / 20,725.93-31,051.69-12,596.68

Finding the Fourth Proportional to 20,725.93, 31,051.69 and 12,596.68

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Solution

The fourth proportional to 20,725.93, 31,051.69 and 12,596.68 is: 18,872.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.93 : 31,051.69 = 12,596.68 : x
  2. Step 2: Convert to fraction form
    20,725.93/31,051.69 = 12,596.68/x
  3. Step 3: Cross multiply
    20,725.93x = 31,051.69 × 12,596.68
  4. Step 4: Simplify right side
    20,725.93x = 391,148,202.39
  5. Step 5: Solve for x
    x = 391,148,202.39/20,725.93
  6. Step 6: Final answer
    x = 18,872.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.