Home / 21,861.90-32,743.51-15,317.30

Finding the Fourth Proportional to 21,861.90, 32,743.51 and 15,317.30

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Solution

The fourth proportional to 21,861.90, 32,743.51 and 15,317.30 is: 22,941.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,861.90 : 32,743.51 = 15,317.30 : x
  2. Step 2: Convert to fraction form
    21,861.90/32,743.51 = 15,317.30/x
  3. Step 3: Cross multiply
    21,861.90x = 32,743.51 × 15,317.30
  4. Step 4: Simplify right side
    21,861.90x = 501,542,165.72
  5. Step 5: Solve for x
    x = 501,542,165.72/21,861.90
  6. Step 6: Final answer
    x = 22,941.38

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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.