Home / 27,310.51-40,970.44-12,520.69

Finding the Fourth Proportional to 27,310.51, 40,970.44 and 12,520.69

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Solution

The fourth proportional to 27,310.51, 40,970.44 and 12,520.69 is: 18,783.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,310.51 : 40,970.44 = 12,520.69 : x
  2. Step 2: Convert to fraction form
    27,310.51/40,970.44 = 12,520.69/x
  3. Step 3: Cross multiply
    27,310.51x = 40,970.44 × 12,520.69
  4. Step 4: Simplify right side
    27,310.51x = 512,978,178.40
  5. Step 5: Solve for x
    x = 512,978,178.40/27,310.51
  6. Step 6: Final answer
    x = 18,783.18

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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.