Home / 27,121.24-40,685.73-8,402.75

Finding the Fourth Proportional to 27,121.24, 40,685.73 and 8,402.75

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Solution

The fourth proportional to 27,121.24, 40,685.73 and 8,402.75 is: 12,605.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,121.24 : 40,685.73 = 8,402.75 : x
  2. Step 2: Convert to fraction form
    27,121.24/40,685.73 = 8,402.75/x
  3. Step 3: Cross multiply
    27,121.24x = 40,685.73 × 8,402.75
  4. Step 4: Simplify right side
    27,121.24x = 341,871,935.39
  5. Step 5: Solve for x
    x = 341,871,935.39/27,121.24
  6. Step 6: Final answer
    x = 12,605.32

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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.