Home / 21,548.13-32,315.88-8,397.36

Finding the Fourth Proportional to 21,548.13, 32,315.88 and 8,397.36

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Solution

The fourth proportional to 21,548.13, 32,315.88 and 8,397.36 is: 12,593.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,548.13 : 32,315.88 = 8,397.36 : x
  2. Step 2: Convert to fraction form
    21,548.13/32,315.88 = 8,397.36/x
  3. Step 3: Cross multiply
    21,548.13x = 32,315.88 × 8,397.36
  4. Step 4: Simplify right side
    21,548.13x = 271,368,078.08
  5. Step 5: Solve for x
    x = 271,368,078.08/21,548.13
  6. Step 6: Final answer
    x = 12,593.58

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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.