Home / 19,830.69-27,371.15-13,467.90

Finding the Fourth Proportional to 19,830.69, 27,371.15 and 13,467.90

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Solution

The fourth proportional to 19,830.69, 27,371.15 and 13,467.90 is: 18,588.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.69 : 27,371.15 = 13,467.90 : x
  2. Step 2: Convert to fraction form
    19,830.69/27,371.15 = 13,467.90/x
  3. Step 3: Cross multiply
    19,830.69x = 27,371.15 × 13,467.90
  4. Step 4: Simplify right side
    19,830.69x = 368,631,843.75
  5. Step 5: Solve for x
    x = 368,631,843.75/19,830.69
  6. Step 6: Final answer
    x = 18,588.96

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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.