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Finding the Fourth Proportional to 30,536.99, 45,797.28 and 20,736.49

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Solution

The fourth proportional to 30,536.99, 45,797.28 and 20,736.49 is: 31,099.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,536.99 : 45,797.28 = 20,736.49 : x
  2. Step 2: Convert to fraction form
    30,536.99/45,797.28 = 20,736.49/x
  3. Step 3: Cross multiply
    30,536.99x = 45,797.28 × 20,736.49
  4. Step 4: Simplify right side
    30,536.99x = 949,674,838.75
  5. Step 5: Solve for x
    x = 949,674,838.75/30,536.99
  6. Step 6: Final answer
    x = 31,099.16

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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.