Home / 23,130.86-31,919.88-13,059.14

Finding the Fourth Proportional to 23,130.86, 31,919.88 and 13,059.14

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Solution

The fourth proportional to 23,130.86, 31,919.88 and 13,059.14 is: 18,021.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,130.86 : 31,919.88 = 13,059.14 : x
  2. Step 2: Convert to fraction form
    23,130.86/31,919.88 = 13,059.14/x
  3. Step 3: Cross multiply
    23,130.86x = 31,919.88 × 13,059.14
  4. Step 4: Simplify right side
    23,130.86x = 416,846,181.70
  5. Step 5: Solve for x
    x = 416,846,181.70/23,130.86
  6. Step 6: Final answer
    x = 18,021.21

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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.