Home / 20,237.68-27,930.90-11,854.36

Finding the Fourth Proportional to 20,237.68, 27,930.90 and 11,854.36

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Solution

The fourth proportional to 20,237.68, 27,930.90 and 11,854.36 is: 16,360.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.68 : 27,930.90 = 11,854.36 : x
  2. Step 2: Convert to fraction form
    20,237.68/27,930.90 = 11,854.36/x
  3. Step 3: Cross multiply
    20,237.68x = 27,930.90 × 11,854.36
  4. Step 4: Simplify right side
    20,237.68x = 331,102,943.72
  5. Step 5: Solve for x
    x = 331,102,943.72/20,237.68
  6. Step 6: Final answer
    x = 16,360.72

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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.