Home / 20,081.57-27,722.21-14,118.35

Finding the Fourth Proportional to 20,081.57, 27,722.21 and 14,118.35

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Solution

The fourth proportional to 20,081.57, 27,722.21 and 14,118.35 is: 19,490.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.57 : 27,722.21 = 14,118.35 : x
  2. Step 2: Convert to fraction form
    20,081.57/27,722.21 = 14,118.35/x
  3. Step 3: Cross multiply
    20,081.57x = 27,722.21 × 14,118.35
  4. Step 4: Simplify right side
    20,081.57x = 391,391,654.35
  5. Step 5: Solve for x
    x = 391,391,654.35/20,081.57
  6. Step 6: Final answer
    x = 19,490.10

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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.