Home / 19,995.12-29,969.82-12,502.08

Finding the Fourth Proportional to 19,995.12, 29,969.82 and 12,502.08

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Solution

The fourth proportional to 19,995.12, 29,969.82 and 12,502.08 is: 18,738.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,995.12 : 29,969.82 = 12,502.08 : x
  2. Step 2: Convert to fraction form
    19,995.12/29,969.82 = 12,502.08/x
  3. Step 3: Cross multiply
    19,995.12x = 29,969.82 × 12,502.08
  4. Step 4: Simplify right side
    19,995.12x = 374,685,087.23
  5. Step 5: Solve for x
    x = 374,685,087.23/19,995.12
  6. Step 6: Final answer
    x = 18,738.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.