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Finding the Fourth Proportional to 27,125.77, 40,655.84 and 13,970.96

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Solution

The fourth proportional to 27,125.77, 40,655.84 and 13,970.96 is: 20,939.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,125.77 : 40,655.84 = 13,970.96 : x
  2. Step 2: Convert to fraction form
    27,125.77/40,655.84 = 13,970.96/x
  3. Step 3: Cross multiply
    27,125.77x = 40,655.84 × 13,970.96
  4. Step 4: Simplify right side
    27,125.77x = 568,001,250.97
  5. Step 5: Solve for x
    x = 568,001,250.97/27,125.77
  6. Step 6: Final answer
    x = 20,939.55

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1.5x scale

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.