Home / 23,144.90-31,920.09-18,101.30

Finding the Fourth Proportional to 23,144.90, 31,920.09 and 18,101.30

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Solution

The fourth proportional to 23,144.90, 31,920.09 and 18,101.30 is: 24,964.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,144.90 : 31,920.09 = 18,101.30 : x
  2. Step 2: Convert to fraction form
    23,144.90/31,920.09 = 18,101.30/x
  3. Step 3: Cross multiply
    23,144.90x = 31,920.09 × 18,101.30
  4. Step 4: Simplify right side
    23,144.90x = 577,795,125.12
  5. Step 5: Solve for x
    x = 577,795,125.12/23,144.90
  6. Step 6: Final answer
    x = 24,964.25

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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.