Home / 20,237.24-27,909.19-12,684.33

Finding the Fourth Proportional to 20,237.24, 27,909.19 and 12,684.33

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Solution

The fourth proportional to 20,237.24, 27,909.19 and 12,684.33 is: 17,492.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.24 : 27,909.19 = 12,684.33 : x
  2. Step 2: Convert to fraction form
    20,237.24/27,909.19 = 12,684.33/x
  3. Step 3: Cross multiply
    20,237.24x = 27,909.19 × 12,684.33
  4. Step 4: Simplify right side
    20,237.24x = 354,009,391.85
  5. Step 5: Solve for x
    x = 354,009,391.85/20,237.24
  6. Step 6: Final answer
    x = 17,492.97

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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.