Home / 19,251.40-28,887.22-13,665.12

Finding the Fourth Proportional to 19,251.40, 28,887.22 and 13,665.12

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Solution

The fourth proportional to 19,251.40, 28,887.22 and 13,665.12 is: 20,504.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251.40 : 28,887.22 = 13,665.12 : x
  2. Step 2: Convert to fraction form
    19,251.40/28,887.22 = 13,665.12/x
  3. Step 3: Cross multiply
    19,251.40x = 28,887.22 × 13,665.12
  4. Step 4: Simplify right side
    19,251.40x = 394,747,327.77
  5. Step 5: Solve for x
    x = 394,747,327.77/19,251.40
  6. Step 6: Final answer
    x = 20,504.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.