Home / 21,475.68-32,222.79-11,621.91

Finding the Fourth Proportional to 21,475.68, 32,222.79 and 11,621.91

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Solution

The fourth proportional to 21,475.68, 32,222.79 and 11,621.91 is: 17,437.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,475.68 : 32,222.79 = 11,621.91 : x
  2. Step 2: Convert to fraction form
    21,475.68/32,222.79 = 11,621.91/x
  3. Step 3: Cross multiply
    21,475.68x = 32,222.79 × 11,621.91
  4. Step 4: Simplify right side
    21,475.68x = 374,490,365.33
  5. Step 5: Solve for x
    x = 374,490,365.33/21,475.68
  6. Step 6: Final answer
    x = 17,437.88

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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.