Home / 27,144.19-40,656.14-20,857.93

Finding the Fourth Proportional to 27,144.19, 40,656.14 and 20,857.93

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Solution

The fourth proportional to 27,144.19, 40,656.14 and 20,857.93 is: 31,240.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,144.19 : 40,656.14 = 20,857.93 : x
  2. Step 2: Convert to fraction form
    27,144.19/40,656.14 = 20,857.93/x
  3. Step 3: Cross multiply
    27,144.19x = 40,656.14 × 20,857.93
  4. Step 4: Simplify right side
    27,144.19x = 848,002,817.90
  5. Step 5: Solve for x
    x = 848,002,817.90/27,144.19
  6. Step 6: Final answer
    x = 31,240.67

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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.