Home / 28,812.96-39,765.08-16,716.12

Finding the Fourth Proportional to 28,812.96, 39,765.08 and 16,716.12

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Solution

The fourth proportional to 28,812.96, 39,765.08 and 16,716.12 is: 23,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,812.96 : 39,765.08 = 16,716.12 : x
  2. Step 2: Convert to fraction form
    28,812.96/39,765.08 = 16,716.12/x
  3. Step 3: Cross multiply
    28,812.96x = 39,765.08 × 16,716.12
  4. Step 4: Simplify right side
    28,812.96x = 664,717,849.09
  5. Step 5: Solve for x
    x = 664,717,849.09/28,812.96
  6. Step 6: Final answer
    x = 23,070.10

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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.