Home / 22,580.91-31,161.56-13,020.75

Finding the Fourth Proportional to 22,580.91, 31,161.56 and 13,020.75

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Solution

The fourth proportional to 22,580.91, 31,161.56 and 13,020.75 is: 17,968.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,580.91 : 31,161.56 = 13,020.75 : x
  2. Step 2: Convert to fraction form
    22,580.91/31,161.56 = 13,020.75/x
  3. Step 3: Cross multiply
    22,580.91x = 31,161.56 × 13,020.75
  4. Step 4: Simplify right side
    22,580.91x = 405,746,817.27
  5. Step 5: Solve for x
    x = 405,746,817.27/22,580.91
  6. Step 6: Final answer
    x = 17,968.58

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Double scale
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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.