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Finding the Fourth Proportional to 30,322.54, 45,494.14 and 18,499.98

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Solution

The fourth proportional to 30,322.54, 45,494.14 and 18,499.98 is: 27,756.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,322.54 : 45,494.14 = 18,499.98 : x
  2. Step 2: Convert to fraction form
    30,322.54/45,494.14 = 18,499.98/x
  3. Step 3: Cross multiply
    30,322.54x = 45,494.14 × 18,499.98
  4. Step 4: Simplify right side
    30,322.54x = 841,640,680.12
  5. Step 5: Solve for x
    x = 841,640,680.12/30,322.54
  6. Step 6: Final answer
    x = 27,756.27

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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.