Home / 19,789.25-27,309.49-12,235.39

Finding the Fourth Proportional to 19,789.25, 27,309.49 and 12,235.39

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Solution

The fourth proportional to 19,789.25, 27,309.49 and 12,235.39 is: 16,885.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,789.25 : 27,309.49 = 12,235.39 : x
  2. Step 2: Convert to fraction form
    19,789.25/27,309.49 = 12,235.39/x
  3. Step 3: Cross multiply
    19,789.25x = 27,309.49 × 12,235.39
  4. Step 4: Simplify right side
    19,789.25x = 334,142,161.99
  5. Step 5: Solve for x
    x = 334,142,161.99/19,789.25
  6. Step 6: Final answer
    x = 16,885.04

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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.