Home / 20,191.86-27,862.92-14,889.60

Finding the Fourth Proportional to 20,191.86, 27,862.92 and 14,889.60

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Solution

The fourth proportional to 20,191.86, 27,862.92 and 14,889.60 is: 20,546.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.86 : 27,862.92 = 14,889.60 : x
  2. Step 2: Convert to fraction form
    20,191.86/27,862.92 = 14,889.60/x
  3. Step 3: Cross multiply
    20,191.86x = 27,862.92 × 14,889.60
  4. Step 4: Simplify right side
    20,191.86x = 414,867,733.63
  5. Step 5: Solve for x
    x = 414,867,733.63/20,191.86
  6. Step 6: Final answer
    x = 20,546.29

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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.