Home / 20,006.20-27,585.13-13,636.56

Finding the Fourth Proportional to 20,006.20, 27,585.13 and 13,636.56

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Solution

The fourth proportional to 20,006.20, 27,585.13 and 13,636.56 is: 18,802.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,006.20 : 27,585.13 = 13,636.56 : x
  2. Step 2: Convert to fraction form
    20,006.20/27,585.13 = 13,636.56/x
  3. Step 3: Cross multiply
    20,006.20x = 27,585.13 × 13,636.56
  4. Step 4: Simplify right side
    20,006.20x = 376,166,297.40
  5. Step 5: Solve for x
    x = 376,166,297.40/20,006.20
  6. Step 6: Final answer
    x = 18,802.49

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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.