Home / 18,732.96-28,066.56-16,699.20

Finding the Fourth Proportional to 18,732.96, 28,066.56 and 16,699.20

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Solution

The fourth proportional to 18,732.96, 28,066.56 and 16,699.20 is: 25,019.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732.96 : 28,066.56 = 16,699.20 : x
  2. Step 2: Convert to fraction form
    18,732.96/28,066.56 = 16,699.20/x
  3. Step 3: Cross multiply
    18,732.96x = 28,066.56 × 16,699.20
  4. Step 4: Simplify right side
    18,732.96x = 468,689,098.75
  5. Step 5: Solve for x
    x = 468,689,098.75/18,732.96
  6. Step 6: Final answer
    x = 25,019.49

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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.