Home / 21,540.28-32,290.51-11,551.97

Finding the Fourth Proportional to 21,540.28, 32,290.51 and 11,551.97

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Solution

The fourth proportional to 21,540.28, 32,290.51 and 11,551.97 is: 17,317.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540.28 : 32,290.51 = 11,551.97 : x
  2. Step 2: Convert to fraction form
    21,540.28/32,290.51 = 11,551.97/x
  3. Step 3: Cross multiply
    21,540.28x = 32,290.51 × 11,551.97
  4. Step 4: Simplify right side
    21,540.28x = 373,019,151.81
  5. Step 5: Solve for x
    x = 373,019,151.81/21,540.28
  6. Step 6: Final answer
    x = 17,317.28

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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.