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Finding the Fourth Proportional to 30,064.69, 45,101.13 and 12,530.42

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Solution

The fourth proportional to 30,064.69, 45,101.13 and 12,530.42 is: 18,797.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,064.69 : 45,101.13 = 12,530.42 : x
  2. Step 2: Convert to fraction form
    30,064.69/45,101.13 = 12,530.42/x
  3. Step 3: Cross multiply
    30,064.69x = 45,101.13 × 12,530.42
  4. Step 4: Simplify right side
    30,064.69x = 565,136,101.37
  5. Step 5: Solve for x
    x = 565,136,101.37/30,064.69
  6. Step 6: Final answer
    x = 18,797.34

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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.