Home / 19,695.22-27,174.58-12,631.21

Finding the Fourth Proportional to 19,695.22, 27,174.58 and 12,631.21

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Solution

The fourth proportional to 19,695.22, 27,174.58 and 12,631.21 is: 17,427.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,695.22 : 27,174.58 = 12,631.21 : x
  2. Step 2: Convert to fraction form
    19,695.22/27,174.58 = 12,631.21/x
  3. Step 3: Cross multiply
    19,695.22x = 27,174.58 × 12,631.21
  4. Step 4: Simplify right side
    19,695.22x = 343,247,727.13
  5. Step 5: Solve for x
    x = 343,247,727.13/19,695.22
  6. Step 6: Final answer
    x = 17,427.97

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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.