Home / 20,114.57-27,758.21-11,162.06

Finding the Fourth Proportional to 20,114.57, 27,758.21 and 11,162.06

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Solution

The fourth proportional to 20,114.57, 27,758.21 and 11,162.06 is: 15,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,114.57 : 27,758.21 = 11,162.06 : x
  2. Step 2: Convert to fraction form
    20,114.57/27,758.21 = 11,162.06/x
  3. Step 3: Cross multiply
    20,114.57x = 27,758.21 × 11,162.06
  4. Step 4: Simplify right side
    20,114.57x = 309,838,805.51
  5. Step 5: Solve for x
    x = 309,838,805.51/20,114.57
  6. Step 6: Final answer
    x = 15,403.70

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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.