Home / 22,162.36-30,579.88-13,210.70

Finding the Fourth Proportional to 22,162.36, 30,579.88 and 13,210.70

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Solution

The fourth proportional to 22,162.36, 30,579.88 and 13,210.70 is: 18,228.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,162.36 : 30,579.88 = 13,210.70 : x
  2. Step 2: Convert to fraction form
    22,162.36/30,579.88 = 13,210.70/x
  3. Step 3: Cross multiply
    22,162.36x = 30,579.88 × 13,210.70
  4. Step 4: Simplify right side
    22,162.36x = 403,981,459.56
  5. Step 5: Solve for x
    x = 403,981,459.56/22,162.36
  6. Step 6: Final answer
    x = 18,228.27

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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.