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Finding the Fourth Proportional to 40,353.63, 60,540.16 and 12,651.63

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Solution

The fourth proportional to 40,353.63, 60,540.16 and 12,651.63 is: 18,980.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,353.63 : 60,540.16 = 12,651.63 : x
  2. Step 2: Convert to fraction form
    40,353.63/60,540.16 = 12,651.63/x
  3. Step 3: Cross multiply
    40,353.63x = 60,540.16 × 12,651.63
  4. Step 4: Simplify right side
    40,353.63x = 765,931,704.46
  5. Step 5: Solve for x
    x = 765,931,704.46/40,353.63
  6. Step 6: Final answer
    x = 18,980.49

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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.