Home / 20,755.87-28,649.24-14,470.27

Finding the Fourth Proportional to 20,755.87, 28,649.24 and 14,470.27

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Solution

The fourth proportional to 20,755.87, 28,649.24 and 14,470.27 is: 19,973.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755.87 : 28,649.24 = 14,470.27 : x
  2. Step 2: Convert to fraction form
    20,755.87/28,649.24 = 14,470.27/x
  3. Step 3: Cross multiply
    20,755.87x = 28,649.24 × 14,470.27
  4. Step 4: Simplify right side
    20,755.87x = 414,562,238.09
  5. Step 5: Solve for x
    x = 414,562,238.09/20,755.87
  6. Step 6: Final answer
    x = 19,973.25

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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.