Home / 18,656.91-25,748.34-13,932.99

Finding the Fourth Proportional to 18,656.91, 25,748.34 and 13,932.99

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Solution

The fourth proportional to 18,656.91, 25,748.34 and 13,932.99 is: 19,228.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,656.91 : 25,748.34 = 13,932.99 : x
  2. Step 2: Convert to fraction form
    18,656.91/25,748.34 = 13,932.99/x
  3. Step 3: Cross multiply
    18,656.91x = 25,748.34 × 13,932.99
  4. Step 4: Simplify right side
    18,656.91x = 358,751,234.99
  5. Step 5: Solve for x
    x = 358,751,234.99/18,656.91
  6. Step 6: Final answer
    x = 19,228.87

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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.