Home / 27,331.60-40,997.40-9,803.20

Finding the Fourth Proportional to 27,331.60, 40,997.40 and 9,803.20

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Solution

The fourth proportional to 27,331.60, 40,997.40 and 9,803.20 is: 14,704.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,331.60 : 40,997.40 = 9,803.20 : x
  2. Step 2: Convert to fraction form
    27,331.60/40,997.40 = 9,803.20/x
  3. Step 3: Cross multiply
    27,331.60x = 40,997.40 × 9,803.20
  4. Step 4: Simplify right side
    27,331.60x = 401,905,711.68
  5. Step 5: Solve for x
    x = 401,905,711.68/27,331.60
  6. Step 6: Final answer
    x = 14,704.80

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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.