Home / 18,414.30-25,400.88-13,030.68

Finding the Fourth Proportional to 18,414.30, 25,400.88 and 13,030.68

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Solution

The fourth proportional to 18,414.30, 25,400.88 and 13,030.68 is: 17,974.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,414.30 : 25,400.88 = 13,030.68 : x
  2. Step 2: Convert to fraction form
    18,414.30/25,400.88 = 13,030.68/x
  3. Step 3: Cross multiply
    18,414.30x = 25,400.88 × 13,030.68
  4. Step 4: Simplify right side
    18,414.30x = 330,990,739.00
  5. Step 5: Solve for x
    x = 330,990,739.00/18,414.30
  6. Step 6: Final answer
    x = 17,974.66

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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.