Home / 22,116.70-30,519.04-13,162.76

Finding the Fourth Proportional to 22,116.70, 30,519.04 and 13,162.76

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Solution

The fourth proportional to 22,116.70, 30,519.04 and 13,162.76 is: 18,163.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,116.70 : 30,519.04 = 13,162.76 : x
  2. Step 2: Convert to fraction form
    22,116.70/30,519.04 = 13,162.76/x
  3. Step 3: Cross multiply
    22,116.70x = 30,519.04 × 13,162.76
  4. Step 4: Simplify right side
    22,116.70x = 401,714,798.95
  5. Step 5: Solve for x
    x = 401,714,798.95/22,116.70
  6. Step 6: Final answer
    x = 18,163.41

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Half scale
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Double scale
Find fourth proportional to 22,117.70, 30,520.42 and 13,163.76
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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.