Home / 26,973.76-40,460.10-12,172.09

Finding the Fourth Proportional to 26,973.76, 40,460.10 and 12,172.09

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Solution

The fourth proportional to 26,973.76, 40,460.10 and 12,172.09 is: 18,257.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,973.76 : 40,460.10 = 12,172.09 : x
  2. Step 2: Convert to fraction form
    26,973.76/40,460.10 = 12,172.09/x
  3. Step 3: Cross multiply
    26,973.76x = 40,460.10 × 12,172.09
  4. Step 4: Simplify right side
    26,973.76x = 492,483,978.61
  5. Step 5: Solve for x
    x = 492,483,978.61/26,973.76
  6. Step 6: Final answer
    x = 18,257.89

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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.