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Finding the Fourth Proportional to 40,615.56, 60,915.90 and 18,423.60

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Solution

The fourth proportional to 40,615.56, 60,915.90 and 18,423.60 is: 27,632.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,615.56 : 60,915.90 = 18,423.60 : x
  2. Step 2: Convert to fraction form
    40,615.56/60,915.90 = 18,423.60/x
  3. Step 3: Cross multiply
    40,615.56x = 60,915.90 × 18,423.60
  4. Step 4: Simplify right side
    40,615.56x = 1,122,290,175.24
  5. Step 5: Solve for x
    x = 1,122,290,175.24/40,615.56
  6. Step 6: Final answer
    x = 27,632.03

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1.5x scale

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.