Home / 23,130.43-31,918.21-13,059.86

Finding the Fourth Proportional to 23,130.43, 31,918.21 and 13,059.86

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Solution

The fourth proportional to 23,130.43, 31,918.21 and 13,059.86 is: 18,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,130.43 : 31,918.21 = 13,059.86 : x
  2. Step 2: Convert to fraction form
    23,130.43/31,918.21 = 13,059.86/x
  3. Step 3: Cross multiply
    23,130.43x = 31,918.21 × 13,059.86
  4. Step 4: Simplify right side
    23,130.43x = 416,847,288.75
  5. Step 5: Solve for x
    x = 416,847,288.75/23,130.43
  6. Step 6: Final answer
    x = 18,021.60

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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.