Home / 43,272.21-64,904.67-13,685.75

Finding the Fourth Proportional to 43,272.21, 64,904.67 and 13,685.75

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Solution

The fourth proportional to 43,272.21, 64,904.67 and 13,685.75 is: 20,527.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,272.21 : 64,904.67 = 13,685.75 : x
  2. Step 2: Convert to fraction form
    43,272.21/64,904.67 = 13,685.75/x
  3. Step 3: Cross multiply
    43,272.21x = 64,904.67 × 13,685.75
  4. Step 4: Simplify right side
    43,272.21x = 888,268,762.93
  5. Step 5: Solve for x
    x = 888,268,762.93/43,272.21
  6. Step 6: Final answer
    x = 20,527.46

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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.