Home / 21,735.55-32,588.74-8,581.15

Finding the Fourth Proportional to 21,735.55, 32,588.74 and 8,581.15

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Solution

The fourth proportional to 21,735.55, 32,588.74 and 8,581.15 is: 12,865.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,735.55 : 32,588.74 = 8,581.15 : x
  2. Step 2: Convert to fraction form
    21,735.55/32,588.74 = 8,581.15/x
  3. Step 3: Cross multiply
    21,735.55x = 32,588.74 × 8,581.15
  4. Step 4: Simplify right side
    21,735.55x = 279,648,866.25
  5. Step 5: Solve for x
    x = 279,648,866.25/21,735.55
  6. Step 6: Final answer
    x = 12,865.97

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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.