Home / 20,496.01-28,279.47-13,676.62

Finding the Fourth Proportional to 20,496.01, 28,279.47 and 13,676.62

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Solution

The fourth proportional to 20,496.01, 28,279.47 and 13,676.62 is: 18,870.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,496.01 : 28,279.47 = 13,676.62 : x
  2. Step 2: Convert to fraction form
    20,496.01/28,279.47 = 13,676.62/x
  3. Step 3: Cross multiply
    20,496.01x = 28,279.47 × 13,676.62
  4. Step 4: Simplify right side
    20,496.01x = 386,767,564.99
  5. Step 5: Solve for x
    x = 386,767,564.99/20,496.01
  6. Step 6: Final answer
    x = 18,870.38

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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.