Home / 23,179.65-31,989.68-13,108.29

Finding the Fourth Proportional to 23,179.65, 31,989.68 and 13,108.29

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Solution

The fourth proportional to 23,179.65, 31,989.68 and 13,108.29 is: 18,090.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,179.65 : 31,989.68 = 13,108.29 : x
  2. Step 2: Convert to fraction form
    23,179.65/31,989.68 = 13,108.29/x
  3. Step 3: Cross multiply
    23,179.65x = 31,989.68 × 13,108.29
  4. Step 4: Simplify right side
    23,179.65x = 419,330,002.45
  5. Step 5: Solve for x
    x = 419,330,002.45/23,179.65
  6. Step 6: Final answer
    x = 18,090.44

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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.