Home / 43,148.50-64,629.27-20,915.37

Finding the Fourth Proportional to 43,148.50, 64,629.27 and 20,915.37

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Solution

The fourth proportional to 43,148.50, 64,629.27 and 20,915.37 is: 31,327.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,148.50 : 64,629.27 = 20,915.37 : x
  2. Step 2: Convert to fraction form
    43,148.50/64,629.27 = 20,915.37/x
  3. Step 3: Cross multiply
    43,148.50x = 64,629.27 × 20,915.37
  4. Step 4: Simplify right side
    43,148.50x = 1,351,745,094.88
  5. Step 5: Solve for x
    x = 1,351,745,094.88/43,148.50
  6. Step 6: Final answer
    x = 31,327.74

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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.