Home / 40,670.72-61,009.20-12,593.60

Finding the Fourth Proportional to 40,670.72, 61,009.20 and 12,593.60

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Solution

The fourth proportional to 40,670.72, 61,009.20 and 12,593.60 is: 18,891.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,670.72 : 61,009.20 = 12,593.60 : x
  2. Step 2: Convert to fraction form
    40,670.72/61,009.20 = 12,593.60/x
  3. Step 3: Cross multiply
    40,670.72x = 61,009.20 × 12,593.60
  4. Step 4: Simplify right side
    40,670.72x = 768,325,461.12
  5. Step 5: Solve for x
    x = 768,325,461.12/40,670.72
  6. Step 6: Final answer
    x = 18,891.37

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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.