Home / 28,914.39-43,363.80-9,938.79

Finding the Fourth Proportional to 28,914.39, 43,363.80 and 9,938.79

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Solution

The fourth proportional to 28,914.39, 43,363.80 and 9,938.79 is: 14,905.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,914.39 : 43,363.80 = 9,938.79 : x
  2. Step 2: Convert to fraction form
    28,914.39/43,363.80 = 9,938.79/x
  3. Step 3: Cross multiply
    28,914.39x = 43,363.80 × 9,938.79
  4. Step 4: Simplify right side
    28,914.39x = 430,983,701.80
  5. Step 5: Solve for x
    x = 430,983,701.80/28,914.39
  6. Step 6: Final answer
    x = 14,905.51

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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.