Home / 43,287.45-64,933.20-13,707.60

Finding the Fourth Proportional to 43,287.45, 64,933.20 and 13,707.60

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Solution

The fourth proportional to 43,287.45, 64,933.20 and 13,707.60 is: 20,562.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,287.45 : 64,933.20 = 13,707.60 : x
  2. Step 2: Convert to fraction form
    43,287.45/64,933.20 = 13,707.60/x
  3. Step 3: Cross multiply
    43,287.45x = 64,933.20 × 13,707.60
  4. Step 4: Simplify right side
    43,287.45x = 890,078,332.32
  5. Step 5: Solve for x
    x = 890,078,332.32/43,287.45
  6. Step 6: Final answer
    x = 20,562.04

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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.