Home / 19,795.39-27,310.12-12,239.30

Finding the Fourth Proportional to 19,795.39, 27,310.12 and 12,239.30

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Solution

The fourth proportional to 19,795.39, 27,310.12 and 12,239.30 is: 16,885.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,795.39 : 27,310.12 = 12,239.30 : x
  2. Step 2: Convert to fraction form
    19,795.39/27,310.12 = 12,239.30/x
  3. Step 3: Cross multiply
    19,795.39x = 27,310.12 × 12,239.30
  4. Step 4: Simplify right side
    19,795.39x = 334,256,789.39
  5. Step 5: Solve for x
    x = 334,256,789.39/19,795.39
  6. Step 6: Final answer
    x = 16,885.59

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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.