Home / 20,288.86-27,993.51-11,903.74

Finding the Fourth Proportional to 20,288.86, 27,993.51 and 11,903.74

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Solution

The fourth proportional to 20,288.86, 27,993.51 and 11,903.74 is: 16,424.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288.86 : 27,993.51 = 11,903.74 : x
  2. Step 2: Convert to fraction form
    20,288.86/27,993.51 = 11,903.74/x
  3. Step 3: Cross multiply
    20,288.86x = 27,993.51 × 11,903.74
  4. Step 4: Simplify right side
    20,288.86x = 333,227,464.73
  5. Step 5: Solve for x
    x = 333,227,464.73/20,288.86
  6. Step 6: Final answer
    x = 16,424.16

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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.