Home / 20,742.67-28,634.66-14,039.17

Finding the Fourth Proportional to 20,742.67, 28,634.66 and 14,039.17

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Solution

The fourth proportional to 20,742.67, 28,634.66 and 14,039.17 is: 19,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,742.67 : 28,634.66 = 14,039.17 : x
  2. Step 2: Convert to fraction form
    20,742.67/28,634.66 = 14,039.17/x
  3. Step 3: Cross multiply
    20,742.67x = 28,634.66 × 14,039.17
  4. Step 4: Simplify right side
    20,742.67x = 402,007,010.54
  5. Step 5: Solve for x
    x = 402,007,010.54/20,742.67
  6. Step 6: Final answer
    x = 19,380.68

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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.