Home / 21,718.38-32,538.96-15,131.64

Finding the Fourth Proportional to 21,718.38, 32,538.96 and 15,131.64

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Solution

The fourth proportional to 21,718.38, 32,538.96 and 15,131.64 is: 22,670.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,718.38 : 32,538.96 = 15,131.64 : x
  2. Step 2: Convert to fraction form
    21,718.38/32,538.96 = 15,131.64/x
  3. Step 3: Cross multiply
    21,718.38x = 32,538.96 × 15,131.64
  4. Step 4: Simplify right side
    21,718.38x = 492,367,828.69
  5. Step 5: Solve for x
    x = 492,367,828.69/21,718.38
  6. Step 6: Final answer
    x = 22,670.56

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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.