Home / 22,786.63-31,440.51-13,220.97

Finding the Fourth Proportional to 22,786.63, 31,440.51 and 13,220.97

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Solution

The fourth proportional to 22,786.63, 31,440.51 and 13,220.97 is: 18,242.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,786.63 : 31,440.51 = 13,220.97 : x
  2. Step 2: Convert to fraction form
    22,786.63/31,440.51 = 13,220.97/x
  3. Step 3: Cross multiply
    22,786.63x = 31,440.51 × 13,220.97
  4. Step 4: Simplify right side
    22,786.63x = 415,673,973.39
  5. Step 5: Solve for x
    x = 415,673,973.39/22,786.63
  6. Step 6: Final answer
    x = 18,242.02

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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.