Home / 13,541.55-20,310.48-4,775.31

Finding the Fourth Proportional to 13,541.55, 20,310.48 and 4,775.31

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Solution

The fourth proportional to 13,541.55, 20,310.48 and 4,775.31 is: 7,162.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.55 : 20,310.48 = 4,775.31 : x
  2. Step 2: Convert to fraction form
    13,541.55/20,310.48 = 4,775.31/x
  3. Step 3: Cross multiply
    13,541.55x = 20,310.48 × 4,775.31
  4. Step 4: Simplify right side
    13,541.55x = 96,988,838.25
  5. Step 5: Solve for x
    x = 96,988,838.25/13,541.55
  6. Step 6: Final answer
    x = 7,162.31

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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.