Home / 43,842.48-65,785.32-20,470.56

Finding the Fourth Proportional to 43,842.48, 65,785.32 and 20,470.56

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Solution

The fourth proportional to 43,842.48, 65,785.32 and 20,470.56 is: 30,715.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,842.48 : 65,785.32 = 20,470.56 : x
  2. Step 2: Convert to fraction form
    43,842.48/65,785.32 = 20,470.56/x
  3. Step 3: Cross multiply
    43,842.48x = 65,785.32 × 20,470.56
  4. Step 4: Simplify right side
    43,842.48x = 1,346,662,340.18
  5. Step 5: Solve for x
    x = 1,346,662,340.18/43,842.48
  6. Step 6: Final answer
    x = 30,715.93

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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.