Home / 26,871.85-40,313.57-8,153.40

Finding the Fourth Proportional to 26,871.85, 40,313.57 and 8,153.40

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Solution

The fourth proportional to 26,871.85, 40,313.57 and 8,153.40 is: 12,231.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,871.85 : 40,313.57 = 8,153.40 : x
  2. Step 2: Convert to fraction form
    26,871.85/40,313.57 = 8,153.40/x
  3. Step 3: Cross multiply
    26,871.85x = 40,313.57 × 8,153.40
  4. Step 4: Simplify right side
    26,871.85x = 328,692,460.07
  5. Step 5: Solve for x
    x = 328,692,460.07/26,871.85
  6. Step 6: Final answer
    x = 12,231.85

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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.