Home / 20,192.85-27,878.91-14,878.44

Finding the Fourth Proportional to 20,192.85, 27,878.91 and 14,878.44

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Solution

The fourth proportional to 20,192.85, 27,878.91 and 14,878.44 is: 20,541.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.85 : 27,878.91 = 14,878.44 : x
  2. Step 2: Convert to fraction form
    20,192.85/27,878.91 = 14,878.44/x
  3. Step 3: Cross multiply
    20,192.85x = 27,878.91 × 14,878.44
  4. Step 4: Simplify right side
    20,192.85x = 414,794,689.70
  5. Step 5: Solve for x
    x = 414,794,689.70/20,192.85
  6. Step 6: Final answer
    x = 20,541.66

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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.