Home / 22,260.96-30,721.59-12,830.13

Finding the Fourth Proportional to 22,260.96, 30,721.59 and 12,830.13

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Solution

The fourth proportional to 22,260.96, 30,721.59 and 12,830.13 is: 17,706.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,260.96 : 30,721.59 = 12,830.13 : x
  2. Step 2: Convert to fraction form
    22,260.96/30,721.59 = 12,830.13/x
  3. Step 3: Cross multiply
    22,260.96x = 30,721.59 × 12,830.13
  4. Step 4: Simplify right side
    22,260.96x = 394,161,993.51
  5. Step 5: Solve for x
    x = 394,161,993.51/22,260.96
  6. Step 6: Final answer
    x = 17,706.42

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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.