Home / 19,669.67-27,154.19-13,329.75

Finding the Fourth Proportional to 19,669.67, 27,154.19 and 13,329.75

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Solution

The fourth proportional to 19,669.67, 27,154.19 and 13,329.75 is: 18,401.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.67 : 27,154.19 = 13,329.75 : x
  2. Step 2: Convert to fraction form
    19,669.67/27,154.19 = 13,329.75/x
  3. Step 3: Cross multiply
    19,669.67x = 27,154.19 × 13,329.75
  4. Step 4: Simplify right side
    19,669.67x = 361,958,699.31
  5. Step 5: Solve for x
    x = 361,958,699.31/19,669.67
  6. Step 6: Final answer
    x = 18,401.87

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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.