Home / 30,076.53-45,089.42-18,958.71

Finding the Fourth Proportional to 30,076.53, 45,089.42 and 18,958.71

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Solution

The fourth proportional to 30,076.53, 45,089.42 and 18,958.71 is: 28,422.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,076.53 : 45,089.42 = 18,958.71 : x
  2. Step 2: Convert to fraction form
    30,076.53/45,089.42 = 18,958.71/x
  3. Step 3: Cross multiply
    30,076.53x = 45,089.42 × 18,958.71
  4. Step 4: Simplify right side
    30,076.53x = 854,837,214.15
  5. Step 5: Solve for x
    x = 854,837,214.15/30,076.53
  6. Step 6: Final answer
    x = 28,422.07

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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.