Home / 19,805.43-27,309.11-12,625.77

Finding the Fourth Proportional to 19,805.43, 27,309.11 and 12,625.77

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Solution

The fourth proportional to 19,805.43, 27,309.11 and 12,625.77 is: 17,409.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.43 : 27,309.11 = 12,625.77 : x
  2. Step 2: Convert to fraction form
    19,805.43/27,309.11 = 12,625.77/x
  3. Step 3: Cross multiply
    19,805.43x = 27,309.11 × 12,625.77
  4. Step 4: Simplify right side
    19,805.43x = 344,798,478.64
  5. Step 5: Solve for x
    x = 344,798,478.64/19,805.43
  6. Step 6: Final answer
    x = 17,409.29

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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.