Home / 20,288.36-27,992.82-11,903.24

Finding the Fourth Proportional to 20,288.36, 27,992.82 and 11,903.24

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Solution

The fourth proportional to 20,288.36, 27,992.82 and 11,903.24 is: 16,423.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288.36 : 27,992.82 = 11,903.24 : x
  2. Step 2: Convert to fraction form
    20,288.36/27,992.82 = 11,903.24/x
  3. Step 3: Cross multiply
    20,288.36x = 27,992.82 × 11,903.24
  4. Step 4: Simplify right side
    20,288.36x = 333,205,254.74
  5. Step 5: Solve for x
    x = 333,205,254.74/20,288.36
  6. Step 6: Final answer
    x = 16,423.47

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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.