Home / 20,732.10-28,609.83-12,774.06

Finding the Fourth Proportional to 20,732.10, 28,609.83 and 12,774.06

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Solution

The fourth proportional to 20,732.10, 28,609.83 and 12,774.06 is: 17,627.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.10 : 28,609.83 = 12,774.06 : x
  2. Step 2: Convert to fraction form
    20,732.10/28,609.83 = 12,774.06/x
  3. Step 3: Cross multiply
    20,732.10x = 28,609.83 × 12,774.06
  4. Step 4: Simplify right side
    20,732.10x = 365,463,685.01
  5. Step 5: Solve for x
    x = 365,463,685.01/20,732.10
  6. Step 6: Final answer
    x = 17,627.91

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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.