Home / 20,967.69-31,450.59-5,974.86

Finding the Fourth Proportional to 20,967.69, 31,450.59 and 5,974.86

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Solution

The fourth proportional to 20,967.69, 31,450.59 and 5,974.86 is: 8,962.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,967.69 : 31,450.59 = 5,974.86 : x
  2. Step 2: Convert to fraction form
    20,967.69/31,450.59 = 5,974.86/x
  3. Step 3: Cross multiply
    20,967.69x = 31,450.59 × 5,974.86
  4. Step 4: Simplify right side
    20,967.69x = 187,912,872.17
  5. Step 5: Solve for x
    x = 187,912,872.17/20,967.69
  6. Step 6: Final answer
    x = 8,962.02

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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.