Home / 43,470.12-65,208.66-13,892.16

Finding the Fourth Proportional to 43,470.12, 65,208.66 and 13,892.16

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Solution

The fourth proportional to 43,470.12, 65,208.66 and 13,892.16 is: 20,839.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,470.12 : 65,208.66 = 13,892.16 : x
  2. Step 2: Convert to fraction form
    43,470.12/65,208.66 = 13,892.16/x
  3. Step 3: Cross multiply
    43,470.12x = 65,208.66 × 13,892.16
  4. Step 4: Simplify right side
    43,470.12x = 905,889,138.11
  5. Step 5: Solve for x
    x = 905,889,138.11/43,470.12
  6. Step 6: Final answer
    x = 20,839.35

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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.