Home / 28,914.15-43,378.16-9,938.46

Finding the Fourth Proportional to 28,914.15, 43,378.16 and 9,938.46

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Solution

The fourth proportional to 28,914.15, 43,378.16 and 9,938.46 is: 14,910.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,914.15 : 43,378.16 = 9,938.46 : x
  2. Step 2: Convert to fraction form
    28,914.15/43,378.16 = 9,938.46/x
  3. Step 3: Cross multiply
    28,914.15x = 43,378.16 × 9,938.46
  4. Step 4: Simplify right side
    28,914.15x = 431,112,058.34
  5. Step 5: Solve for x
    x = 431,112,058.34/28,914.15
  6. Step 6: Final answer
    x = 14,910.07

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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.