Home / 28,977.43-39,986.66-17,645.67

Finding the Fourth Proportional to 28,977.43, 39,986.66 and 17,645.67

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Solution

The fourth proportional to 28,977.43, 39,986.66 and 17,645.67 is: 24,349.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977.43 : 39,986.66 = 17,645.67 : x
  2. Step 2: Convert to fraction form
    28,977.43/39,986.66 = 17,645.67/x
  3. Step 3: Cross multiply
    28,977.43x = 39,986.66 × 17,645.67
  4. Step 4: Simplify right side
    28,977.43x = 705,591,563.34
  5. Step 5: Solve for x
    x = 705,591,563.34/28,977.43
  6. Step 6: Final answer
    x = 24,349.69

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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.