Home / 28,703.11-43,046.85-18,157.30

Finding the Fourth Proportional to 28,703.11, 43,046.85 and 18,157.30

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Solution

The fourth proportional to 28,703.11, 43,046.85 and 18,157.30 is: 27,231.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,703.11 : 43,046.85 = 18,157.30 : x
  2. Step 2: Convert to fraction form
    28,703.11/43,046.85 = 18,157.30/x
  3. Step 3: Cross multiply
    28,703.11x = 43,046.85 × 18,157.30
  4. Step 4: Simplify right side
    28,703.11x = 781,614,354.27
  5. Step 5: Solve for x
    x = 781,614,354.27/28,703.11
  6. Step 6: Final answer
    x = 27,231.00

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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.