Home / 22,580.43-31,162.64-13,630.11

Finding the Fourth Proportional to 22,580.43, 31,162.64 and 13,630.11

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Solution

The fourth proportional to 22,580.43, 31,162.64 and 13,630.11 is: 18,810.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,580.43 : 31,162.64 = 13,630.11 : x
  2. Step 2: Convert to fraction form
    22,580.43/31,162.64 = 13,630.11/x
  3. Step 3: Cross multiply
    22,580.43x = 31,162.64 × 13,630.11
  4. Step 4: Simplify right side
    22,580.43x = 424,750,142.94
  5. Step 5: Solve for x
    x = 424,750,142.94/22,580.43
  6. Step 6: Final answer
    x = 18,810.54

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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.