Home / 20,240.64-27,923.40-11,742.12

Finding the Fourth Proportional to 20,240.64, 27,923.40 and 11,742.12

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Solution

The fourth proportional to 20,240.64, 27,923.40 and 11,742.12 is: 16,199.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,240.64 : 27,923.40 = 11,742.12 : x
  2. Step 2: Convert to fraction form
    20,240.64/27,923.40 = 11,742.12/x
  3. Step 3: Cross multiply
    20,240.64x = 27,923.40 × 11,742.12
  4. Step 4: Simplify right side
    20,240.64x = 327,879,913.61
  5. Step 5: Solve for x
    x = 327,879,913.61/20,240.64
  6. Step 6: Final answer
    x = 16,199.09

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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.