Home / 20,267.70-27,962.87-12,717.09

Finding the Fourth Proportional to 20,267.70, 27,962.87 and 12,717.09

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Solution

The fourth proportional to 20,267.70, 27,962.87 and 12,717.09 is: 17,545.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,267.70 : 27,962.87 = 12,717.09 : x
  2. Step 2: Convert to fraction form
    20,267.70/27,962.87 = 12,717.09/x
  3. Step 3: Cross multiply
    20,267.70x = 27,962.87 × 12,717.09
  4. Step 4: Simplify right side
    20,267.70x = 355,606,270.86
  5. Step 5: Solve for x
    x = 355,606,270.86/20,267.70
  6. Step 6: Final answer
    x = 17,545.47

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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.