Home / 22,116.48-30,519.36-12,180.48

Finding the Fourth Proportional to 22,116.48, 30,519.36 and 12,180.48

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Solution

The fourth proportional to 22,116.48, 30,519.36 and 12,180.48 is: 16,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,116.48 : 30,519.36 = 12,180.48 : x
  2. Step 2: Convert to fraction form
    22,116.48/30,519.36 = 12,180.48/x
  3. Step 3: Cross multiply
    22,116.48x = 30,519.36 × 12,180.48
  4. Step 4: Simplify right side
    22,116.48x = 371,740,454.09
  5. Step 5: Solve for x
    x = 371,740,454.09/22,116.48
  6. Step 6: Final answer
    x = 16,808.30

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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.