Home / 28,310.28-39,057.30-18,237.96

Finding the Fourth Proportional to 28,310.28, 39,057.30 and 18,237.96

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Solution

The fourth proportional to 28,310.28, 39,057.30 and 18,237.96 is: 25,161.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310.28 : 39,057.30 = 18,237.96 : x
  2. Step 2: Convert to fraction form
    28,310.28/39,057.30 = 18,237.96/x
  3. Step 3: Cross multiply
    28,310.28x = 39,057.30 × 18,237.96
  4. Step 4: Simplify right side
    28,310.28x = 712,325,475.11
  5. Step 5: Solve for x
    x = 712,325,475.11/28,310.28
  6. Step 6: Final answer
    x = 25,161.37

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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.