Home / 20,697.64-31,046.56-7,549.99

Finding the Fourth Proportional to 20,697.64, 31,046.56 and 7,549.99

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Solution

The fourth proportional to 20,697.64, 31,046.56 and 7,549.99 is: 11,325.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.64 : 31,046.56 = 7,549.99 : x
  2. Step 2: Convert to fraction form
    20,697.64/31,046.56 = 7,549.99/x
  3. Step 3: Cross multiply
    20,697.64x = 31,046.56 × 7,549.99
  4. Step 4: Simplify right side
    20,697.64x = 234,401,121.04
  5. Step 5: Solve for x
    x = 234,401,121.04/20,697.64
  6. Step 6: Final answer
    x = 11,325.02

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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.