Home / 13,941.18-20,915.05-4,581.22

Finding the Fourth Proportional to 13,941.18, 20,915.05 and 4,581.22

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Solution

The fourth proportional to 13,941.18, 20,915.05 and 4,581.22 is: 6,872.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,941.18 : 20,915.05 = 4,581.22 : x
  2. Step 2: Convert to fraction form
    13,941.18/20,915.05 = 4,581.22/x
  3. Step 3: Cross multiply
    13,941.18x = 20,915.05 × 4,581.22
  4. Step 4: Simplify right side
    13,941.18x = 95,816,445.36
  5. Step 5: Solve for x
    x = 95,816,445.36/13,941.18
  6. Step 6: Final answer
    x = 6,872.91

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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.