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Finding the Fourth Proportional to 30,519.48, 45,735.06 and 14,919.48

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Solution

The fourth proportional to 30,519.48, 45,735.06 and 14,919.48 is: 22,357.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,519.48 : 45,735.06 = 14,919.48 : x
  2. Step 2: Convert to fraction form
    30,519.48/45,735.06 = 14,919.48/x
  3. Step 3: Cross multiply
    30,519.48x = 45,735.06 × 14,919.48
  4. Step 4: Simplify right side
    30,519.48x = 682,343,312.97
  5. Step 5: Solve for x
    x = 682,343,312.97/30,519.48
  6. Step 6: Final answer
    x = 22,357.63

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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.