Home / 26,731.84-40,071.30-12,667

Finding the Fourth Proportional to 26,731.84, 40,071.30 and 12,667

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Solution

The fourth proportional to 26,731.84, 40,071.30 and 12,667 is: 18,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,731.84 : 40,071.30 = 12,667 : x
  2. Step 2: Convert to fraction form
    26,731.84/40,071.30 = 12,667/x
  3. Step 3: Cross multiply
    26,731.84x = 40,071.30 × 12,667
  4. Step 4: Simplify right side
    26,731.84x = 507,583,157.10
  5. Step 5: Solve for x
    x = 507,583,157.10/26,731.84
  6. Step 6: Final answer
    x = 18,987.96

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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.