Home / 19,669.61-27,135.42-13,293.87

Finding the Fourth Proportional to 19,669.61, 27,135.42 and 13,293.87

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Solution

The fourth proportional to 19,669.61, 27,135.42 and 13,293.87 is: 18,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.61 : 27,135.42 = 13,293.87 : x
  2. Step 2: Convert to fraction form
    19,669.61/27,135.42 = 13,293.87/x
  3. Step 3: Cross multiply
    19,669.61x = 27,135.42 × 13,293.87
  4. Step 4: Simplify right side
    19,669.61x = 360,734,745.88
  5. Step 5: Solve for x
    x = 360,734,745.88/19,669.61
  6. Step 6: Final answer
    x = 18,339.70

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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.