Home / 22,581.23-31,161.41-13,021.16

Finding the Fourth Proportional to 22,581.23, 31,161.41 and 13,021.16

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Solution

The fourth proportional to 22,581.23, 31,161.41 and 13,021.16 is: 17,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,581.23 : 31,161.41 = 13,021.16 : x
  2. Step 2: Convert to fraction form
    22,581.23/31,161.41 = 13,021.16/x
  3. Step 3: Cross multiply
    22,581.23x = 31,161.41 × 13,021.16
  4. Step 4: Simplify right side
    22,581.23x = 405,757,533.35
  5. Step 5: Solve for x
    x = 405,757,533.35/22,581.23
  6. Step 6: Final answer
    x = 17,968.80

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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.