Home / 26,968.03-40,420.28-12,159.61

Finding the Fourth Proportional to 26,968.03, 40,420.28 and 12,159.61

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Solution

The fourth proportional to 26,968.03, 40,420.28 and 12,159.61 is: 18,225.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,968.03 : 40,420.28 = 12,159.61 : x
  2. Step 2: Convert to fraction form
    26,968.03/40,420.28 = 12,159.61/x
  3. Step 3: Cross multiply
    26,968.03x = 40,420.28 × 12,159.61
  4. Step 4: Simplify right side
    26,968.03x = 491,494,840.89
  5. Step 5: Solve for x
    x = 491,494,840.89/26,968.03
  6. Step 6: Final answer
    x = 18,225.09

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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.