Home / 20,813.88-28,734.27-14,017.65

Finding the Fourth Proportional to 20,813.88, 28,734.27 and 14,017.65

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Solution

The fourth proportional to 20,813.88, 28,734.27 and 14,017.65 is: 19,351.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,813.88 : 28,734.27 = 14,017.65 : x
  2. Step 2: Convert to fraction form
    20,813.88/28,734.27 = 14,017.65/x
  3. Step 3: Cross multiply
    20,813.88x = 28,734.27 × 14,017.65
  4. Step 4: Simplify right side
    20,813.88x = 402,786,939.87
  5. Step 5: Solve for x
    x = 402,786,939.87/20,813.88
  6. Step 6: Final answer
    x = 19,351.84

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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.