Home / 28,902.11-43,355.20-12,260.26

Finding the Fourth Proportional to 28,902.11, 43,355.20 and 12,260.26

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Solution

The fourth proportional to 28,902.11, 43,355.20 and 12,260.26 is: 18,391.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,902.11 : 43,355.20 = 12,260.26 : x
  2. Step 2: Convert to fraction form
    28,902.11/43,355.20 = 12,260.26/x
  3. Step 3: Cross multiply
    28,902.11x = 43,355.20 × 12,260.26
  4. Step 4: Simplify right side
    28,902.11x = 531,545,885.31
  5. Step 5: Solve for x
    x = 531,545,885.31/28,902.11
  6. Step 6: Final answer
    x = 18,391.25

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1.5x scale

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.