Home / 28,899.30-43,363.35-16,428.90

Finding the Fourth Proportional to 28,899.30, 43,363.35 and 16,428.90

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Solution

The fourth proportional to 28,899.30, 43,363.35 and 16,428.90 is: 24,651.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,899.30 : 43,363.35 = 16,428.90 : x
  2. Step 2: Convert to fraction form
    28,899.30/43,363.35 = 16,428.90/x
  3. Step 3: Cross multiply
    28,899.30x = 43,363.35 × 16,428.90
  4. Step 4: Simplify right side
    28,899.30x = 712,412,140.82
  5. Step 5: Solve for x
    x = 712,412,140.82/28,899.30
  6. Step 6: Final answer
    x = 24,651.54

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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.