Home / 21,655.44-32,457.92-9,171.30

Finding the Fourth Proportional to 21,655.44, 32,457.92 and 9,171.30

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Solution

The fourth proportional to 21,655.44, 32,457.92 and 9,171.30 is: 13,746.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.44 : 32,457.92 = 9,171.30 : x
  2. Step 2: Convert to fraction form
    21,655.44/32,457.92 = 9,171.30/x
  3. Step 3: Cross multiply
    21,655.44x = 32,457.92 × 9,171.30
  4. Step 4: Simplify right side
    21,655.44x = 297,681,321.70
  5. Step 5: Solve for x
    x = 297,681,321.70/21,655.44
  6. Step 6: Final answer
    x = 13,746.26

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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.