Home / 28,898.80-43,362.60-16,428.40

Finding the Fourth Proportional to 28,898.80, 43,362.60 and 16,428.40

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Solution

The fourth proportional to 28,898.80, 43,362.60 and 16,428.40 is: 24,650.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,898.80 : 43,362.60 = 16,428.40 : x
  2. Step 2: Convert to fraction form
    28,898.80/43,362.60 = 16,428.40/x
  3. Step 3: Cross multiply
    28,898.80x = 43,362.60 × 16,428.40
  4. Step 4: Simplify right side
    28,898.80x = 712,378,137.84
  5. Step 5: Solve for x
    x = 712,378,137.84/28,898.80
  6. Step 6: Final answer
    x = 24,650.79

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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.