Home / 43,290.11-64,885.99-18,314.57

Finding the Fourth Proportional to 43,290.11, 64,885.99 and 18,314.57

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Solution

The fourth proportional to 43,290.11, 64,885.99 and 18,314.57 is: 27,451.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,290.11 : 64,885.99 = 18,314.57 : x
  2. Step 2: Convert to fraction form
    43,290.11/64,885.99 = 18,314.57/x
  3. Step 3: Cross multiply
    43,290.11x = 64,885.99 × 18,314.57
  4. Step 4: Simplify right side
    43,290.11x = 1,188,358,635.66
  5. Step 5: Solve for x
    x = 1,188,358,635.66/43,290.11
  6. Step 6: Final answer
    x = 27,451.05

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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.