Home / 28,892.30-43,352.85-16,421.90

Finding the Fourth Proportional to 28,892.30, 43,352.85 and 16,421.90

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Solution

The fourth proportional to 28,892.30, 43,352.85 and 16,421.90 is: 24,641.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,892.30 : 43,352.85 = 16,421.90 : x
  2. Step 2: Convert to fraction form
    28,892.30/43,352.85 = 16,421.90/x
  3. Step 3: Cross multiply
    28,892.30x = 43,352.85 × 16,421.90
  4. Step 4: Simplify right side
    28,892.30x = 711,936,167.42
  5. Step 5: Solve for x
    x = 711,936,167.42/28,892.30
  6. Step 6: Final answer
    x = 24,641.03

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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.