Home / 21,479.81-32,232.47-11,618.87

Finding the Fourth Proportional to 21,479.81, 32,232.47 and 11,618.87

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Solution

The fourth proportional to 21,479.81, 32,232.47 and 11,618.87 is: 17,435.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,479.81 : 32,232.47 = 11,618.87 : x
  2. Step 2: Convert to fraction form
    21,479.81/32,232.47 = 11,618.87/x
  3. Step 3: Cross multiply
    21,479.81x = 32,232.47 × 11,618.87
  4. Step 4: Simplify right side
    21,479.81x = 374,504,659.45
  5. Step 5: Solve for x
    x = 374,504,659.45/21,479.81
  6. Step 6: Final answer
    x = 17,435.20

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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.