Home / 19,695.17-27,189.37-15,208.85

Finding the Fourth Proportional to 19,695.17, 27,189.37 and 15,208.85

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Solution

The fourth proportional to 19,695.17, 27,189.37 and 15,208.85 is: 20,995.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,695.17 : 27,189.37 = 15,208.85 : x
  2. Step 2: Convert to fraction form
    19,695.17/27,189.37 = 15,208.85/x
  3. Step 3: Cross multiply
    19,695.17x = 27,189.37 × 15,208.85
  4. Step 4: Simplify right side
    19,695.17x = 413,519,136.91
  5. Step 5: Solve for x
    x = 413,519,136.91/19,695.17
  6. Step 6: Final answer
    x = 20,995.96

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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.