Home / 20,242.46-27,934.11-11,289.93

Finding the Fourth Proportional to 20,242.46, 27,934.11 and 11,289.93

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Solution

The fourth proportional to 20,242.46, 27,934.11 and 11,289.93 is: 15,579.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242.46 : 27,934.11 = 11,289.93 : x
  2. Step 2: Convert to fraction form
    20,242.46/27,934.11 = 11,289.93/x
  3. Step 3: Cross multiply
    20,242.46x = 27,934.11 × 11,289.93
  4. Step 4: Simplify right side
    20,242.46x = 315,374,146.51
  5. Step 5: Solve for x
    x = 315,374,146.51/20,242.46
  6. Step 6: Final answer
    x = 15,579.84

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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.